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

(5,8)

3 answers

tan T = 5/8
T = tan^-1 (5/8)
= 32.0 degrees
C(0,0), (5,8).

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