HARD
10th Foundation
IMPORTANT
Earn 100

The angle of elevation of cliff from a fixed point A is 45°. After going up a distance of 600 metres towards the top of the cliff at an inclination of 30°, it is found that the angle of elevation is 60°. Find the height of the cliff.

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Important Questions on Some Applications of Trigonometry

HARD
10th Foundation
IMPORTANT
IMO Olympiad Work Book 10>Chapter 9 - Some Applications of Trigonometry>ACHIEVERS SECTION (HOTS)>Q 19
An angle of elevation of an aeroplane from a point on the ground is 45°. After a flight of 10 sec, the elevation changes to 30°. If the aeroplane is flying at a height of 3 km, find the speed of aeroplane.
HARD
10th Foundation
IMPORTANT
IMO Olympiad Work Book 10>Chapter 9 - Some Applications of Trigonometry>ACHIEVERS SECTION (HOTS)>Q 20
The angle of depressions of the top and bottom of 10 meter tall building from the top of a multi storied building are 30° and 60° respectively. Find the height of the multi storied building and the distance between the two buildings.