Question

A man standing on the bank of a river sees the top of the tree on the opposite side of the river at an angle of elevation 50°. The height of the tree is 20 metre.​

Answer 1

Answer:

Step-by-step explanation:

we know, the hight if tree is 20m

and angle given is 50˚

so by using trignometry

tan50=opposite/adjacent= 20/x (let width of river be x)

∴x=20×tan∧-1(50)