In the diagram below, lines h and s are parallel. If the m∠2 = 70°, what is the angle measurement of m∠1?
a. 70
b. 130
c. 7
d. 110

Answer:
D. 110°
Step-by-step explanation:
∠1 and ∠2 are supplementary meaning they add up to 180°.
m∠1 + m∠2 = 180°
m∠1 + 70° = 180°
m∠1 = 110°