10
A
B
8
Find cos 20
A 3
5
В.
6
5
C. 5
D. 1

Answer:
A. 3/5
Step-by-step explanation:
cos∅ = adjacent over hypotenuse
We see that we are trying to find cosC.
Our adjacent length: 6
Our hypotenuse: 10
cosC = 6/10
cosC = 3/5