Answer:
A = 51
B = 51
Explanation:
ANGLE A
angle D= 180 - 98 = 82
angle C 180-102-31 = 47
angle D (82) + angle C (47) = 129 degrees
180 - 129 = 51
ANGLE B
angle D = 98
angle C = 31
98 + 31 = 129
8.6m questions
11.2m answers