Special Properties, SMB-020 MC
There are 3 triangles drawn in the lower semi-circle and the angles at the centre are all equal to
The three triangles are best described as:
- isosceles
- scalene
- right-angled
- equilateral
Special Properties, SMB-005 MC
What is the best description of
- isosceles
- equilateral
- scalene
- right-angled
Special Properties, SMB-004 MC
Which one of the following triangles is impossible to draw?
- a right angled triangle with two acute angles
- an isosceles triangle with one right angle
- a scalene triangle with three acute angles
- a right angled triangle with one obtuse angle
Special Properties, SMB-003 MC
Special Properties, SMB-002 MC
A triangle has two acute angles.
What type of angle couldn't the third angle be?
- an acute angle
- an obtuse angle
- a right-angle
- a reflex angle
Special Properties, SMB-001 MC
Which of the following triangle types is impossible to draw?
- a right-angled, scalene triangle
- a right-angled, equilateral triangle
- an obtuse-angled, isosceles triangle
- an acute-angled, scalene triangle
Plane Geometry, 2UA 2004 HSC 2b
In the diagram,
Find the size of
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Plane Geometry, 2UA 2005 HSC 5b
The diagram shows a parallelogram
Prove that
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Plane Geometry, 2UA 2008 HSC 4a
In the diagram,
Prove that
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Plane Geometry, 2UA 2011 HSC 6a
The diagram shows a regular pentagon
- Find the size of
. (1 mark)
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- Hence, show that
is isosceles. (2 marks)
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| i. |  |
MARKER’S COMMENT: Very few students solved part (i) efficiently. Remember the general formula for the sum of internal angles equals (# sides – 2) x 90°.
ii.