Question

How do I find the measure of theta? Apparently the answer is 36.8 degrees, but how do I find it?
So far I have,
A = (8, 6)
r = √(8)^2 + (6)^2 = 10

Sin theta = y = 6/10 = 3/5
Cosine theta = x = 8/10 = 4/5
Tan theta = y/x = 6/8 = 3/4

Answer 1

tan = 6/8 = 3/4
to get angle use tan^-1 same as inverse tan

Answer 2

@triciaal thanks so much!!

Answer 3

you are welcome