Question

I need to find the cos of c because I don’t know it

Answer 1

3/5.

Explanation:

In this right-angled triangle cos C = adjacent side / hypotenuse

= 27 / 45 = 3/5.

An aid to memory for sin, cos and tan is

SOH-CAH-TOA.

SinOppositeHypotenuse-CosAdjacentHypotenuse-TanOppositeAdJacent.

Answer 2

3/5 or 0.6

Explanation:

In right triangle

cos(angle)= adjacent leg/hypotenuse = 27/45 =3/5=0.6