Find the angle (Θ) for a terminal arm with the following coordinates(round to one decimal place):

Question

(5,8)

Answer 1

tan T = 5/8
T = tan^-1 (5/8)
= 32.0 degrees

Answer 2

C(0,0), (5,8).

tanA = (8-0) / (5-0) = 1.6.
A = 58 deg.

Answer 3

Henry is correct