Question

2. If m 26 = 128°, calculate m25, m_1, and m23.
+
5 6
113
42
7 8

Answer 1

m∠5= 52°

m∠1= 128°

m∠3= 52°

Explanation:

Please see the attached picture for the full solution.

Alternatively,

m∠3= m∠5 (vert. opp. ∠s)

m∠3= 52°