Aussie Maths & Science Teachers: Save your time with SmarterEd
In the diagram, `ACD` is a straight line.
What is the size of angle `BCE`?
| `45°` | `48°` | `51°` | `87°` |
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| `angleBCA` | `= 180 – (81 + 51)qquad(180^@\ text(in triangle))` |
| `= 48^@` |
| `:. angleBCE` | `= 180 – (48 + 45)qquad(angleACD\ text(is a straight angle))` |
| `= 87^@` |
Hamish builds a skateboard ramp with an incline of approximately 45°.
Which of these shows an angle closest to the side view of the incline of the ramp?
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Which angle is closest in size to `100^@?`
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Which shows an obtuse angle?
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Which angle below is closest to a right angle?
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Which of the angles in this shape is closest to 60° ?
| `a` | `b` | `c` | `d` |
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