Question

What is the measure A in degree, in figure shown

Answer 1

We can find the angle A using the definition of supplementary angle:

$\begin{gathered} m\angle A+167.3=180 \\ Solve_{\text{ }}for_{\text{ }}m\angle A: \\ m\angle A=180-167.3 \\ m\angle A=12.7 \end{gathered}$

Answer:

12.7⁰