Question

Help??

Answer 1

Have you heard of SOHCAHTOA?

Answer 2

@mathstudent55 no?

Answer 3

SOH CAH TOA is a way of memorizing which ratio is each of the 3 main trig functions.

SOH means
Sin = Opp/Hyp

CAH means
Cos = Adj/Hyp

TOA means
Tan = Opp/Adj

Answer 4

@mathstudent55 i got the answer, 0.8? (:

Answer 5

Now look above at the cos part: CAH means cos = adj/hyp
The cosine of an angle is the ratio of the adjacent leg and the hypotenuse.
For angle C, the adjacent leg is 72 and the hypotenuse is 90, so
cos C = 72/90 = 0.8
You are correct.

Answer 6

@mathstudent55 ty!

Answer 7

wlcm