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# Solution - A bird is sitting on the top of a 80 m high tree. From a point on the ground, the angle of elevation of the bird is 45°. The bird flies away horizontally in such a way that it remained at a constant height from the ground. - CBSE Class 10 - Mathematics

ConceptHeights and Distances

#### Question

A bird is sitting on the top of a 80 m high tree. From a point on the ground, the angle of elevation of the bird is 45°. The bird flies away horizontally in such a way that it remained at a constant height from the ground. After 2 seconds, the angle of elevation of the bird from the same point is 30°. Find the speed of flying of the bird.

("Take"sqrt3=1.732)

#### Solution

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#### APPEARS IN

2015-2016 (March) Delhi Set 1
Question 26 | 4 marks
2015-2016 (March) Delhi Set 3
Question 23 | 4 marks

#### Reference Material

Solution for question: A bird is sitting on the top of a 80 m high tree. From a point on the ground, the angle of elevation of the bird is 45°. The bird flies away horizontally in such a way that it remained at a constant height from the ground. concept: Heights and Distances. For the course CBSE
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