Question

what is the value of b?

Explanation:

Step1: Identify the type of angle

Assume the total angle is a right - angle (\(90^{\circ}\)).

Step2: Calculate the value of \(b\)

We know that \(b + 31.4^{\circ}=90^{\circ}\). Then \(b = 90^{\circ}-31.4^{\circ}\).

$$b=90 - 31.4=58.6$$

Answer:

\(58.6^{\circ}\)