Answer:
m∠3 = 158°
Step-by-step explanation:
Angles one and two are complementary angles.
Complementary angles add up to 90°. Given the measurement of ∠1:
68° + m∠2 = 90°
68° - 68° + m∠2 = 90° - 68°
m∠2 = 22°
Angles 2 and 3 are supplementary angles.
Supplementary angles add up to 180°.
22° + m∠3 = 180°
22° + m∠3 = 180° - 22°
m∠3 = 158°
Hope this helps.
