Question

a bird is sitting on the top of a 80m high tree. from a point on the ground, the angle of elevation of a bird is 45 degree. the bird flies away from the point of the observation horizontally and remains at a constant height. after 2 seconds, the angle of elevation of the bird from the point of the observation becomes 30 degree find the speed of flying of the bird use root 3 =1.7

Answer 1

Answer:

Step-by-step explanation: