Question

Write the ratios for sin A and cos A.
5
4
B
13

Answer 1

sin A = 3/5

cos A = 4/5

Explanation:

For angle A, the opposite leg is BC with length 3.

For angle A, the adjacent leg is AC with length 4.

The hypotenuse is AB with length 5.

sin A = opp/hyp

sin A = 3/5

cos A = adj/hyp

cos A = 4/5