Question

If the m
2= 40, what is the m_5?

Answer 1

Angle 1 and 2 are the same, so angle 1 is 40° as well.

Angle 1 and 5 form 180 ° together. So, we have

`\hat{1}+\hat{5}=180 \implies 40+\hat{5}=180 \iff \hat{5}=140`