Question

I need help finding A!

Answer 1

The exact answer is 26.986270816

Explanation:

Sin(39) * 28 = 26.986270816

Answer 2

27 cm

Explanation:

This is a right triangle so we can use trig functions.

sin theta = opposite/ hypotenuse

sin 39 = a/28

Multiply each side by 28

28 sin 39 = a

26.98627082

Rounding

a = 27