Question

Can someone help me please

measure of angle B = 37 degrees, a = 12, b = 15. Find the measure of angle A to the nearest degree.

Answer 1

Answer: 28.78

Explanation:

`(\sin A)/(a)=(\sin B)/(b)\\\\ \sin A=(a \sin B)/(b)\\\\\sin A=(12 \sin 37^(\circ))/(15)\\\\\sin A=0.481452...\\\\A \approx 28.78^(\circ), 151.21^(\circ)`

However, we disregard the second case, giving 28.78 degrees.