Question

Can someone help me ?

Answer 1

Explanation:

Given

let the unknown angle be x then,

with reference angle x

perpendicular(p) = 3

base(b)= 9

now

tan x = p/b

tan x = 3 / 9

tan x = 1 / 3

x = tan ^-1( 1/3)

x = 18.43°

hope it will help u :)