The angle of elevation of the top of a building from a point on the ground is 30°. On walking 20 m towards the building the angle becomes 60°. Find the height of the building.
Heights and Distances
Original Khojo Papers practice question — not from a past board paper.
50 m
No citable source has been recorded for this record. Treat it as practice material, not as fact.
The angle of depression equals the angle of elevation from the car, so tan 45° = 50 ÷ d, giving d = 50 m.
From the same topic and chapter, at a similar level.
The angle of elevation of the top of a building from a point on the ground is 30°. On walking 20 m towards the building the angle becomes 60°. Find the height of the building.
Heights and Distances
As the sun rises higher in the sky, the length of the shadow of a tower:
Heights and Distances
A kite is flying at a height of 60 m above the ground. The string is straight and makes an angle of 60° with the ground. Find the length of the string.
Heights and Distances
The shadow of a vertical pole is √3 times its height. Find the angle of elevation of the sun.
Heights and Distances
The angle of elevation of the top of a tower from a point on level ground 30 m from its foot is 60°. Find the height of the tower correct to two decimal places. (Take √3 = 1.732)
Heights and Distances
A ladder 10 m long leans against a wall and makes an angle of 60° with the ground. How high up the wall does it reach, and how far is its foot from the wall?
Heights and Distances