Geometry and TrigonometryHardHeight gained on a ramp
Geometry and Trigonometry practice question
A straight ramp is 50 metres long and makes an angle of 30° with the horizontal ground. How many metres higher is the top of the ramp than the bottom?
Answer: 25
height = 50 sin 30° = 50 × 1/2 = 25.
Common wrong answers
- If you answered 100
- 100 divides 50 by sin 30°.
- If you answered 43.3
- 43.3 uses cos 30°, giving the horizontal distance.
- If you answered 28.9
- 28.9 uses tan 30°.
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