In the diagram below, find the value of \(a^{\circ}\), giving reasons for your answer. (2 marks)
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In the diagram below, find the value of \(a^{\circ}\), giving reasons for your answer. (2 marks)
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\(46^{\circ}\)
\(\text{Since cointerior angles sum to 180°:}\)
\(180^{\circ}\) | \(=a+60+74\) | |
\(a^{\circ}\) | \(=180-134\) | |
\(=46^{\circ}\) |
In the diagram below, find the value of \(x^{\circ}\), giving reasons for your answer. (2 marks)
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\(45^{\circ}\)
\(\text{Since cointerior angles sum to 180°:}\)
\(180^{\circ}\) | \(=x+70+65\) | |
\(x^{\circ}\) | \(=180-135\) | |
\(=45^{\circ}\) |
In the diagram below, find the value of \(x^{\circ}\), giving reasons for your answer. (2 marks)
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\(\angle y^{\circ} = 40^{\circ}\ \ \text{(alternate angles)} \)
\(\angle x^{\circ}=360=40 = 320^{\circ}\ \ \text{(360° about a point)}\)
\(\angle y^{\circ} = 40^{\circ}\ \ \text{(alternate angles)} \)
\(\angle x^{\circ}=360=40 = 320^{\circ}\ \ \text{(360° about a point)}\)
In the diagram below, find the value of \(a^{\circ}\), giving reasons for your answer. (2 marks)
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\(\angle b^{\circ} = 360-325 = 35^{\circ}\ \ \text{(360° about a point)} \)
\(\angle a^{\circ}=35^{\circ}\ \ \text{(alternate angles)}\)
\(\angle b^{\circ} = 360-325 = 35^{\circ}\ \ \text{(360° about a point)} \)
\(\angle a^{\circ}=35^{\circ}\ \ \text{(alternate angles)}\)
In the diagram below, find the value of \(x^{\circ}\), giving reasons for your answer. (2 marks)
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\(\angle y^{\circ} = 180-(52+90) = 38^{\circ}\ \ \text{(180° in straight line)} \)
\(\angle x^{\circ}=38^{\circ}\ \ \text{(alternate angles)}\)
\(\angle y^{\circ} = 180-(52+90) = 38^{\circ}\ \ \text{(180° in straight line)} \)
\(\angle x^{\circ}=38^{\circ}\ \ \text{(alternate angles)}\)
In the diagram below, \(QR\) is parallel to lines \(SU\) and \(VW\).
Find the value of \(x^{\circ}\), giving reasons for your answer. (3 marks)
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\(\angle UTQ = 125^{\circ}\ \ \text{(corresponding angles)} \)
\(\angle STX=125^{\circ}\ \ \text{(vertically opposite angles)}\)
\(x^{\circ} = 180-125=55^{\circ} \ \ \text{(cointerior angles)}\)
\(\angle UTQ = 125^{\circ}\ \ \text{(corresponding angles)} \)
\(\angle STX=125^{\circ}\ \ \text{(vertically opposite angles)}\)
\(x^{\circ} = 180-125=55^{\circ} \ \ \text{(cointerior angles)}\)
In the diagram below, \(BC\) is parallel to \(DE\) and \(\angle ACB\) is a right-angle.
Find the value of \(x^{\circ}\), giving reasons for your answer. (3 marks)
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\(\text{Extend line}\ BC: \)
\(\angle GCF=180-120=60^{\circ}\ \ \text{(180° in a straight line)}\)
\(x^{\circ} = 60^{\circ} \ \ \text{(corresponding angles)}\)
\(\text{Extend line}\ BC: \)
\(\angle GCF=180-120=60^{\circ}\ \ \text{(180° in a straight line)}\)
\(x^{\circ} = 60^{\circ} \ \ \text{(corresponding angles)}\)
In the diagram below, two parallel lines \(OB\) and \(DC\) cut the horizontal transversal \(OE\), and \(OA\) is perpendicular to \(OE\).
Find the value of \(a^{\circ}\), giving reasons for your answer. (2 marks)
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\(\angle BOE=90-20=70^{\circ}\ \ \text{(complementary angles)}\)
\(a^{\circ} = 70^{\circ} \ \ \text{(corresponding angles)}\)
\(\angle BOE=90-20=70^{\circ}\ \ \text{(complementary angles)}\)
\(a^{\circ} = 70^{\circ} \ \ \text{(corresponding angles)}\)
Determine if two lines in the diagram below are parallel, giving reasons for your answer. (2 marks)
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\(\angle \text{unknown} = 360-310=50^{\circ}\ \ \text{(360° about a point)}\)
\(\text{Since cointerior angles sum to 180°:}\)
\(140 + 50= 190^{\circ} \neq 180^{\circ}\)
\(\therefore \ \text{Lines are not parallel.}\)
\(\angle \text{unknown} = 360-310=50^{\circ}\ \ \text{(360° about a point)}\)
\(\text{Since cointerior angles sum to 180°:}\)
\(140 + 50 = 190^{\circ} \neq 180^{\circ}\)
\(\therefore \ \text{Lines are not parallel.}\)
Find the value of \(x^{\circ}\) in the diagram below, giving reasons for your answer. (2 marks)
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\(40^{\circ}\)
\(\text{Since cointerior angles sum to 180°:}\)
\(180\) | \(=x+65+75\) | |
\(180\) | \(=x+140\) | |
\(x^{\circ}\) | \(=180-40\) | |
\(=40^{\circ}\) |
Convert 485 millilitres to litres. (1 mark)
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\(0.485\ \text{ L}\)
\(1000\ \text{mL}\) | \(=1\ \text{L}\) |
\(\therefore\ 485\ \text{mL}\) | \(=\Bigg(\dfrac{485}{1000}\Bigg)\text{ L}\) |
\(=0.485\ \text{ L}\) |
Convert 7350 millilitres to litres. (1 mark)
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\(7.350\ \text{ L}\)
\(1000\ \text{mL}\) | \(=1\ \text{L}\) |
\(\therefore\ 7350\ \text{mL}\) | \(=\Bigg(\dfrac{7350}{1000}\Bigg)\text{ L}\) |
\(=7.350\ \text{ L}\) |
Convert 60 000 millilitres to litres. (1 mark)
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\(60\ \text{L}\)
\(1000\ \text{mL}\) | \(=1\ \text{L}\) |
\(\therefore\ 60\ 000\ \text{mL}\) | \(=\Bigg(\dfrac{60\ 000}{1000}\Bigg)\text{ L}\) |
\(=60\ \text{ L}\) |
A triangular prism has a volume of 680 cubic centimetres and a height of 5 centimetres. What is the cross-sectional area? (2 marks)
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\(136\ \text{m}^2\)
\(V\) | \(=Ah\) |
\(680\) | \(=A\times 5\) |
\(A\) | \(=\dfrac{680}{5}\) |
\(=136\) |
\(\therefore\ \text{The cross-sectional area is }136\ \text{m}^2.\)
Gavin is going camping in the summer holidays and purchased the two-person tent shown below.
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a. \(2\ \text{m}\)
b. \(12 \text{m}^3\)
c. \(12\ 000\ \text{L}\)
a. | \(a^2+b^2\) | \(=c^2\) |
\(x^2+1.5^2\) | \(=2.5^2\) | |
\(x^2\) | \(=2.5^2-1.5^2\) | |
\(x^2\) | \(=4\) | |
\(x\) | \(=\sqrt{4}=2\) |
\(\therefore\ \text{The perpendicular height of the tent is }2\ \text{metres.}\)
b. | \(V\) | \(=Ah\) |
\(=\Big(\dfrac{1}{2}\times 3\times 2\Big)\times 4\) | ||
\(=3\times 4\) | ||
\(=12\ \text{m}^3\) |
c. | \(1\ \text{m}^3\) | \(=1000\ \text{L}\) |
\(\therefore\ 12\ \text{m}^3\) | \(=12\ 000\ \text{L}\) |
\(\therefore\ \text{The capacity of the tent is }12\ 000\ \text{litres.}\)
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a. \(7\ \text{cm}\)
b. \(168\ \text{cm}^3\)
a. | \(a^2+b^2\) | \(=c^2\) |
\(a^2+3^2\) | \(=7.6^2\) | |
\(a^2\) | \(=7.6^2-3^2\) | |
\(a^2\) | \(=48.76\) | |
\(a\) | \(=\sqrt{48.76}=6.982\dots\) | |
\(a\) | \(\approx 7\) |
\(\therefore\ \text{The perpendicular height of the triangle is }7\ \text{cm, (nearest whole centimetre).}\)
b. | \(V\) | \(=Ah\) |
\(=\Big(\dfrac{1}{2}\times 6\times 7\Big)\times 8\) | ||
\(=21\times 8\) | ||
\(=168\ \text{cm}^3\) |
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a. \(5\ \text{mm}\)
b. \(480\ \text{mm}^3\)
a. | \(a^2+b^2\) | \(=c^2\) |
\(x^2+12^2\) | \(=13^2\) | |
\(x^2\) | \(=13^2-12^2\) | |
\(x^2\) | \(=25\) | |
\(x\) | \(=\sqrt{25}=5\) |
\(\therefore\ \text{The perpendicular height of the triangle is }5\ \text{mm}\)
b. | \(V\) | \(=Ah\) |
\(=\Big(\dfrac{1}{2}\times 12\times 5\Big)\times 16\) | ||
\(=30\times 16\) | ||
\(=480\ \text{mm}^3\) |
Calculate the volume of the triangular prism below in cubic metres. (2 marks)
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\(648\ \text{m}^3\)
\(V\) | \(=Ah\) |
\(=\Big(\dfrac{1}{2}\times 8\times 9\Big)\times 18\) | |
\(=36\times 18\) | |
\(=648\ \text{m}^3\) |
Calculate the volume of the triangular prism below in cubic centimetres. (2 marks)
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\(102.362\ \text{cm}^3\)
\(V\) | \(=Ah\) |
\(=\Big(\dfrac{1}{2}\times 3.1\times 5.2\Big)\times 12.7\) | |
\(=8.06\times 12.7\) | |
\(=102.362\ \text{cm}^3\) |
A children's rectangular swimming pool measures 175 cm × 180 cm × 30 cm.
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a. \(945\ 000\ \text{cm}^3\)
b. \(945\ \text{L}\)
a. | \(V\) | \(=Ah\) |
\(=(175\times 180)\times 30\) | ||
\(=945\ 000\ \text{cm}^3\) |
b. \(1\ \text{L}=1000\ \text{cm}^3\)
\(945\ 000\ \text{cm}^3\) | \(=\Bigg(\dfrac{945\ 000}{1000}\Bigg)\ \text{L}\) |
\(=945\ \text{L}\) |
\(\therefore\ \text{The swimming pool will hold 945 litres of water.}\)
During the construction of a new house a concrete slab in the shape of a rectangular prism is to be poured.
The slab measures 20 m × 15 m × 0.15 m.
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a. \(45\ \text{m}^3\)
b. \($15\ 750\)
a. | \(V\) | \(=Ah\) |
\(V\) | \(=(20\times 15)\times 0.15\) | |
\(=45\ \text{m}^3\) |
b. | \(\text{Cost}\) | \(=\text{Price}\times \text{Concrete}\) |
\(=$350\times 45\) | ||
\(=$15\ 750\) |
A rectangular sand pit measures 150 cm × 200 cm × 45 cm.
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a. \(1\ 350\ 000\ \text{cm}^3\)
b. \(1.35\ \text{m}^3\)
a. | \(V\) | \(=Ah\) |
\(V\) | \(=(150\times 200)\times 45\) | |
\(=1\ 350\ 000\ \text{cm}^3\) |
b. \(1\ \text{m}=100\ \text{cm}\)
\(\therefore\ 1\ \text{m}^3=(100\times 100\times 100)\ \text{cm}^3\)
\(\therefore\ 1\ 350\ 000\ \text{cm}^3\) | \(=\Bigg(\dfrac{1\ 350\ 000}{100\times 100\times 100}\Bigg)\ \text{m}^3\) |
\(=1.35\ \text{m}^3\) |
\(\therefore\ \text{The sandpit will hold }1.35\ \text{cubic metres of sand.}\)
Calculate the volume of the rectangular prism below in cubic millimetres. (2 marks)
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\(104\ 832\ \text{mm}^3\)
\(V\) | \(=Ah\) |
\(V\) | \(=(39\times 42)\times 64\) |
\(=104\ 832\ \text{mm}^3\) |
Calculate the volume of the rectangular prism below in cubic centimetres. (2 marks)
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\(402.57\ \text{cm}^3\)
\(V\) | \(=Ah\) |
\(V\) | \(=(4.2\times 13.5)\times 7.1\) |
\(=402.57\ \text{cm}^3\) |
Calculate the volume of the rectangular prism below in cubic metres. (2 marks)
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\(360\ \text{m}^3\)
\(V\) | \(=Ah\) |
\(V\) | \(=(5\times 9)\times 8\) |
\(=360\ \text{m}^3\) |
The prism below has a height of 100 metres.
Given its volume is 485 cubic metres, calculate the cross-sectional area, \((A)\), of the prism. (2 marks)
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\(4.85\ \text{m}^2\)
\(V=485\ \text{m}^3\ \text{and }h=100\ \text{m}\)
\(V\) | \(=Ah\) |
\(485\) | \(=100A\) |
\(A\) | \(=\dfrac{485}{100}\) |
\(A\) | \(=4.85\ \text{m}^2\) |
The prism below has a height of 23 centimetres.
Given its volume is 391 cubic centimetres, calculate the cross-sectional area, \((A)\), of the prism. (2 marks)
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\(17\ \text{cm}^2\)
\(V=391\ \text{cm}^3\ \text{and }h=23\ \text{cm}\)
\(V\) | \(=Ah\) |
\(391\) | \(=23A\) |
\(A\) | \(=\dfrac{391}{23}\) |
\(A\) | \(=17\ \text{cm}^2\) |
The prism below has a cross-sectional area of 15 square millimetres.
Given its volume is 184.5 cubic millimetres, calculate the height, \((h)\), of the prism. (2 marks)
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\(12.3\ \text{mm}\)
\(V=184.5\ \text{mm}^3\ \text{and }A=15\ \text{mm}^2\)
\(V\) | \(=Ah\) |
\(184.5\) | \(=15h\) |
\(h\) | \(=\dfrac{184.5}{15}\) |
\(h\) | \(=12.3\ \text{mm}\) |
The prism below has a cross-sectional area of 50 square centimetres.
Its volume is 425 cubic centimetres.
Calculate the height, \((h)\), of the prism. (2 marks)
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\(8.5\ \text{cm}\)
\(V=425\ \text{cm}^3\ \text{and }A=50\ \text{cm}^2\)
\(V\) | \(=Ah\) |
\(425\) | \(=50h\) |
\(h\) | \(=\dfrac{425}{50}\) |
\(h\) | \(=8.5\ \text{cm}\) |
A shipping container in the shape of a rectangular prism is being transported by truck to a construction site.
The dimensions of the container are marked on the diagram below and are in metres.
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a. \(8.1\ \text{m}^3\)
b. \(8.1\ \text{kL}\)
a. | \(V\) | \(=Ah\) |
\(V\) | \(=1.8\times 1.5\times 3\) | |
\(=8.1\ \text{m}^3\) |
b. \(1\ \text{m}^3=1\ \text{kL}\)
\(\therefore\ 8.1\ \text{m}^3=8.1\ \text{kL}\)
\(\therefore\ \text{Capacity of the lap pool when full is }8.1\ \text{kilolitres.}\)
A fish tank is in the shape of a cube with a side length of 20 centimetres.
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a. \(8000\ \text{cm}^3\)
b. \(8\ \text{litres}\)
a. | \(V\) | \(=Ah\) |
\(=20\times 20\times 20\) | ||
\(=8\ 000\ \text{cm}^3\) |
b. \(1000\ \text{cm}^3=1\ \text{litre}\)
\(8000\ \text{cm}^3=8\ \text{litres}\)
\(\therefore\ \text{Capacity of fish tank is }8\ \text{litres.}\)
A packing box is in the shape of a cube with a side length of 40 centimetres.
Calculate the volume of the packing box in cubic metres. (2 marks)
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\(0.64\ \text{m}^3\)
\(\text{Convert measurements to metres before substituting into formula.}\)
\(100\ \text{cm}=1\ \text{m}\)
\(\therefore\ 40\ \text{cm}=0.40\ \text{m}\)
\(\text{Volume}\) | \(=Ah\) |
\(V\) | \(=0.40\times 0.40\times 0.40\) |
\(=0.64\ \text{m}^3\) |
A paper recycling bag is in the shape of a cube with a side length of 0.5 metres.
Estimate the volume of the recycling bag in cubic metres. (2 marks)
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\(0.125\ \text{m}^3\)
\(\text{Volume}\) | \(=Ah\) |
\(V\) | \(=0.5\times 0.5\times 0.5\) |
\(=0.125\ \text{m}^3\) |
A cooking vat in the shape of a cube has a volume of 1.331 cubic metres.
Calculate the side length of the vat. (2 marks)
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\(1.1\ \text{m}\)
\(\text{Let }s \ \text{be the side length of the cube}\)
\(\text{Volume}\) | \(=Ah\) |
\(1.331\) | \(=s\times s\times s\) |
\(s^3\) | \(=1.331\) |
\(s\) | \(=\sqrt[3]{1.331}\) |
\(=1.1\) |
\(\therefore\ \text{Side length of the vat is 1.1 metres.}\)
Find the side length of a cube with a volume of 0.343 cubic metres. (2 marks)
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\(0.7\ \text{m}\)
\(\text{Let }s \ \text{be the side length of the cube}\)
\(\text{Volume}\) | \(=Ah\) |
\(0.343\) | \(=s\times s\times s\) |
\(s^3\) | \(=0.343\) |
\(s\) | \(=\sqrt[3]{0.343}\) |
\(=0.7\) |
\(\therefore\ \text{Side length of the cube is }0.7\ \text{metres.}\)
Find the side length of a cube with a volume of 117 649 cubic centimetres. (2 marks)
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\(49\ \text{cm}\)
\(\text{Let }s \ \text{be the side length of the cube}\)
\(\text{Volume}\) | \(=Ah\) |
\(117\ 649\) | \(=s\times s\times s\) |
\(s^3\) | \(=117\ 649\) |
\(s\) | \(=\sqrt[3]{117\ 649}\) |
\(=49\) |
\(\therefore\ \text{Side length of the cube is 49 centimetres.}\)
Find the side length of a cube with a volume of 27 cubic millimetres. (2 marks)
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\(3\ \text{mm}\)
\(\text{Let }s \ \text{be the side length of the cube}\)
\(\text{Volume}\) | \(=Ah\) |
\(27\) | \(=s\times s\times s\) |
\(s^3\) | \(=27\) |
\(s\) | \(=\sqrt[3]{27}\) |
\(=3\) |
\(\therefore\ \text{Side length of the cube is }3\ \text{millimetres.}\)
Calculate the volume of a cube with a side length of 21 millimetres. (2 marks)
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\(9261\ \text{mm}^3\)
\(\text{Volume}\) | \(=Ah\) |
\(=21\times 21\times 21\) | |
\(=9261\ \text{mm}^3\) |
Calculate the volume of a cube with a side length of 9 metres. (2 marks)
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\(729\ \text{m}^3\)
\(\text{Volume}\) | \(=Ah\) |
\(=9\times 9\times 9\) | |
\(=729\ \text{m}^3\) |
Calculate the volume of a cube with a side length of 3.6 metres. (2 marks)
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\(46.656\ \text{m}^3\)
\(\text{Volume}\) | \(=Ah\) |
\(=3.6\times 3.6\times 3.6\) | |
\(=46.656\ \text{m}^3\) |
Calculate the volume of a cube with a side length of 4 centimetres. (2 marks)
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\(64\ \text{cm}^3\)
\(\text{Volume}\) | \(=Ah\) |
\(=4\times 4\times 4\) | |
\(=64\ \text{cm}^3\) |
Calculate the volume of the cube below in cubic metres. (2 marks)
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\(15.625\ \text{m}^3\)
\(\text{Volume}\) | \(=Ah\) |
\(=2.5\times 2.5\times 2.5\) | |
\(=15.625\ \text{m}^3\) |
Calculate the volume of the cube below in cubic millimetres. (2 marks)
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\(3.375\ \text{mm}^3\)
\(\text{Volume}\) | \(=Ah\) |
\(=1.5\times 1.5\times 1.5\) | |
\(=3.375\ \text{mm}^3\) |
Calculate the volume of the cube below in cubic metres. (2 marks)
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\(8\ \text{m}^3\)
\(\text{Volume}\) | \(=Ah\) |
\(=2\times 2\times 2\) | |
\(=8\ \text{m}^3\) |
Calculate the volume of the cube below in cubic centimetres. (2 marks)
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\(1728\ \text{cm}^3\)
\(\text{Volume}\) | \(=Ah\) |
\(=12\times 12\times 12\) | |
\(=1728\ \text{cm}^3\) |
A timber door wedge is pictured below.
The wedge is in the shape of a triangular prism.
What is the volume of the wedge in cubic centimetres?
\(B\)
\(\text{10 mm =1 cm}\)
\(\text{Volume}\) | \(=Ah\) |
\(=\bigg(\dfrac{1}{2}\times 10\times 3\bigg)\times 2.5\) | |
\(=15\times 2.5\) | |
\(=37.5\ \text{cm}^3\) |
\(\Rightarrow\ B\)
A wheelchair ramp is pictured below.
The ramp is in the shape of a triangular prism.
What is the volume of the ramp?
\(A\)
\(\text{Volume}\) | \(=Ah\) |
\(=(\dfrac{1}{2}\times 7\times 0.4)\times 2\) | |
\(=1.4\times 2\) | |
\(=2.8\ \text{m}^3\) |
\(\Rightarrow\ A\)
Concrete is poured to make a pathway.
The dimensions of the slab are shown in the diagram below.
If the concrete costs $180 per cubic metre to pour, what is the cost of pouring the slab?
\(A\)
\(30\ \text{cm}=0.3\ \text{m}\)
\(\text{Volume of slab}\) | \(=8\times 0.3\times 2\) |
\(=4.8\ \text{m}^3\) |
\(\text{Cost of pouring slab}\) | \(=4.8\times $180\) |
\(=$864\) |
\(\Rightarrow\ A\)
A kitchen sink is in the shape of a rectangular prism.
Its measurements can be seen below:
If one cubic metre holds 1000 litres of water, how many litres of water will it take to fill the kitchen sink?
Give your answer correct to the nearest litre. (2 marks)
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\(38\ \text{litres (nearest L)}\)
\(\text{Volume of kitchen sink}\) | \(=0.44\times 0.36\times 0.24\) |
\(=0.038\ 016\ \text{m}^3\) | |
\(\text{Capacity of kitchen sink}\) | \(=0.038\ 016\times 1000\) |
\(=38.016\) | |
\(\approx 38\ \text{litres (nearest L)}\) |
A shipping container in the shape of a rectangular prism is to be converted into a swimming pool.
Its measurements can be seen below:
If one cubic metre holds 1000 litres of water, how many litres of water will the shipping container hold? (2 marks)
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\(56\ 784\ \text{litres}\)
\(\text{Volume of shipping container}\) | \(=2.4\times 2.6\times 9.1\) |
\(=56.784\ \text{m}^3\) | |
\(\text{Capacity of shipping container}\) | \(=56.784\times 1000\) |
\(=56\ 784\ \text{litres}\) |
A water trough is in the shape of a rectangular prism.
Its measurements can be seen below:
If one cubic metre holds 1000 litres of water, how many litres of water will the water trough hold? (2 marks)
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\(2376\ \text{litres}\)
\(\text{Volume of water trough}\) | \(=0.9\times 1.1\times 2.4\) |
\(=2.376\ \text{m}^3\) | |
\(\text{Capacity of water trough}\) | \(=2.376\times 1000\) |
\(=2376\ \text{litres}\) |
A dog bath is in the shape of a rectangular prism.
Its measurements can be seen below:
If one cubic metre holds 1000 litres of water, how many litres of water will the dog bath hold? (2 marks)
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\(4500\ \text{litres}\)
\(\text{Volume of dog bath}\) | \(=1.5\times 0.75\times 4\) |
\(=4.5\ \text{m}^3\) | |
\(\text{Capacity of dog bath}\) | \(=4.5\times 1000\) |
\(=4500\ \text{litres}\) |
The measurements of the prisms below are all in centimetres.
Which prism has the capacity to hold exactly 2 litres of water?
A. | B. |
C. | D. |
\(D\)
\(1\ \text{cm}^3=1\ \text{mL}\ \ \Longrightarrow\ 1000\ \text{cm}^3=1000\ \text{mL}=1\ \text{L}\)
\(\text{Option A:}=50\times 10\times 40=20\ 000\ \text{cm}^3\ \Longrightarrow 20\ \text{L}\)
\(\text{Option B:}=20\times 100\times 50=100\ 000\ \text{cm}^3\ \Longrightarrow 100\ \text{L}\)
\(\text{Option C:}=200\times 200\times 200=8\ 000\ 000\ \text{cm}^3\ \Longrightarrow 8000\ \text{L}\)
\(\text{Option D:}=10\times 10\times 20=2000\ \text{cm}^3\ \Longrightarrow 2\ \text{L}\ \checkmark\)
\(\Rightarrow D\)
The measurements of the prisms below are all in centimetres.
Which prism has the capacity to hold exactly 1 litre of water?
A. | B. |
C. | D. |
\(A\)
\(1\ \text{cm}^3=1\ \text{mL}\ \ \Longrightarrow\ 1000\ \text{cm}^3=1000\ \text{mL}=1\ \text{L}\)
\(\text{Option A:}=10\times 20\times 5=1000\ \text{cm}^3\ \Longrightarrow 1\ \text{L}\ \checkmark\)
\(\text{Option B:}=40\times 25\times 10=10\ 000\ \text{cm}^3\ \Longrightarrow 10\ \text{L}\)
\(\text{Option C:}=40\times 40\times 20=32\ 000\ \text{cm}^3\ \Longrightarrow 32\ \text{L}\)
\(\text{Option D:}=20\times 10\times 15=3000\ \text{cm}^3\ \Longrightarrow 3\ \text{L}\)
\(\Rightarrow A\)
Linda made these solid prisms out of identical cubes.
Which prism has the largest volume?
A. | B. |
C. | D. |
\(C\)
\(\text{Volume of each prism:}\)
\(\text{Option A:}\ \ 8\times 2\times 2=32\ \text{cubes}\)
\(\text{Option B:}\ \ 3\times 3\times 3=27\ \text{cubes}\)
\(\text{Option C:}\ \ 6\times 2\times 3=36\ \text{cubes}\ \checkmark\)
\(\text{Option D:}\ \ 4\times 4\times 2=32\ \text{cubes}\)
\(\Rightarrow C\)
Armon made these solid prisms out of identical cubes.
Which prism has the largest volume?
A. | B. |
C. | D. |
\(A\)
\(\text{Volume of each prism:}\)
\(\text{Option A:}\ \ 5\times 2\times 3=30\ \text{cubes}\ \checkmark\)
\(\text{Option B:}\ \ 7\times 1\times 4=28\ \text{cubes}\)
\(\text{Option C:}\ \ 7\times 2\times 2=28\ \text{cubes}\)
\(\text{Option D:}\ \ 3\times 3\times 3=27\ \text{cubes}\)
\(\Rightarrow A\)