Step-by-step explanation:
m∠A = 29°
∠A and ∠B are complementary, then
m∠A + m∠B = 90°
29° + m∠B = 90°
m∠B = 90° - 29°
= 61°
∠B and ∠C are supplementary, then
m∠B + m∠C = 180°
61° + m∠C = 180°
m∠C = 180° - 61
= 119°
therefore the answer is D. m∠B = 61°, m∠C = 119°
#CMIIW
