Trigonometryeasy · Past Paper
A 10 m long wire is attached to a pole. If the wire makes 60° with the ground, find the pole's height.
A5 m
B10 m
C5√3 m
D10√3 m
✓ Correct Answer: C — 5√3 m
sin 60° = h / 10. √3/2 = h / 10, so h = 5√3 m.
Share this question
More from Trigonometry
- Find the value of sqrt((1 + sin A) / (1 - sin A)).
- What is the value of cos 90°?
- A chimney 20 m high is observed from 20√3 m distance. What is the angle?
- A vertical tower is surmounted by a flagstaff of height h. At a point on ground, elevations of bottom and top of flagstaff are α and β. Tower height is:
- If tan A = 3/4, find the value of cos(2A).