A peacock is sitting on the tree and observes its prey on the ground. It makes an angle of depression of `22^(@)` to catch the prey. The speed of the peacock was observed to be 10 km/hr and it catches its prey in 1 min 12 seconds. At what height was the peacock on the tree?
`(cos 22^(@)=0.927, sin 22^(@)=0.374, tan 22^(@)=0.404)`
