Question

11. In a village, a bird is sitting on the top of a tree, which is 80 m high. The angle of
elevation of the bird, from a point on the ground is 45º. The bird flies away from the
point of observation horizontally and remains at a constant height. After 2 seconds, the
angle of elevation of the bird from the point of observation becomes the complementary
angle of 60°​

Answer 1

Answer:

10 km/hr

Step-by-step explanation:

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Answer 2

Answer:

???????

Step-by-step explanation: