MEDIUM
10th West Bengal Board
IMPORTANT
Earn 100

When the angle of elevation of the sun changes from 45°to 60°, the shadow of a telegraph post changes by 4 metre. When the angle of elevation us 30°, find the length of the shadow of the telegraph post ?

Important Questions on Problems of Height and Distance

MEDIUM
10th West Bengal Board
IMPORTANT
When seen from the top and foot of a building 16 metre high the angle of elevation of the top of a temple are 45° and 60°. Find the height of the temple and its horizontal distance from the house.
EASY
10th West Bengal Board
IMPORTANT
The angle of depression of the top and foot of a tower when seen from the top of a temple 24 metres high are 30° and 60°. Find the height of the tower.
MEDIUM
10th West Bengal Board
IMPORTANT
From the top of the tower at a distance of 30  metre from a house the angle of elevation of the top of the house is  60° and angle of depression of its foot is 30°. Find the height of the house. (3=1.732)
EASY
10th West Bengal Board
IMPORTANT
From the top of a minar, the angle of depression of a point on the ground is  60° and from a point 20 metre below the top of the minar the angle of depression of the point is 30°. Find the height of the minar.
MEDIUM
10th West Bengal Board
IMPORTANT
From the top and foot of a pillar the angle of depression and angle of elevation of the top of a house 25 metre high  is situated on the same plane are 60° and 30°. Find the height of the pillar.
MEDIUM
10th West Bengal Board
IMPORTANT
The height of two pillars are 180 metre and 60 metre. The angle of elevation of the top of the first from the bottom of the second is 60°. What is the distance between the two pillars? What is the angle of elevation of the top of the second from the bottom of the first?
MEDIUM
10th West Bengal Board
IMPORTANT
From a flying aeroplane, just over a straight road, angles of depression of the two consecutive kilometer stones situated at the opposite sides of the aeroplane are found to be 60° and 30°. Find the height of the aeroplane from the road.
EASY
10th West Bengal Board
IMPORTANT
When seen from the roof of a 18 m high, five storeyed building, the angle of elevation of the top of a monument is 45°and the angle of depression of the bottom of the monument is 60°. What is the height of the monument?