Question

Find sin angle∠ A.
A. 3/5
B. 4/5
C. 1
D. 5/4

Answer 1

The answer is B.

Explanation:

We can use right triangle ratios.

Recall SohCahToa, where:

`\displaystyle \sin(A)=\frac{\text{opposite}}{\text{hypotenuse}}`.

The opposite side (to angle A) is 8, while the hypotenuse is 10.

Thus, we have:

`\sin(A)=8/10=4/5`

The correct answer is B.