Question

Q:The angle of elevation of the top of a building from a point on the ground, which is 30 m away from the foot of the building, is 30°. The height of the building is:

(a) 10 m

(b) 30/√3 m

(c) √3/10 m

(d) 30 m​

Answer 1

Answer: (b) 30/√3 m

Explanation: Say x is the height of the building.

a is a point 30 m away from the foot of the building.

Here, height is the perpendicular and distance between point a and foot of building is the base.

The angle of elevation formed is 30°.

Hence, tan 30° = perpendicular/base = x/30

1/√3 = x/30

x = 30/√3

Answer 2

Answer:

the answer is options d . welcome