Trigonometry

Question

Mr Rynne, who is 188cm, is flying a drone in the park. He looks up at a 30 degree angle towards a tree that is 20m from him and sees a bird chirping in it. The bird is chirping at the drone that is 60 degrees above the tree. How high is the drone flying directly above the ground? Correct to 2 decimal places.

Answer 1

20*(tan 60 + tan 30) + 1.88 =   46.06021535