Question

Find the cos of angle y

Answer 1

Answer:4/5

Explanation:

Answer 2

`\cos(y) = (4)/(5)`

EXPLANATION

From the mnemonics SOH-CAH-TOA.

We want to find the cosine of y

CAH means cosine ratio involves adjacent over the hypotenuse.

`\cos(y) = (adjacent)/(hypotenuse)`

From the right by triangle, the side ajacent to angle y is 64 units and the hypotenuse is 80 units.

`\cos(y) = (64)/(80)`

`\cos(y) = (4)/(5)`