Answer:
Option A. 56°
Step-by-step explanation:
In the given diagram, the measure of angle 8 is 124° and ∠2 is 84°.
We have to find the measure of angle 7.
Since angle 7 and angle 8 are complementary angles (sum of angles on a line is equal to 180°)
m∠7 + m∠8 = 180°
angle 7 = 180° - m∠8
∠ 7 = 180° - 124° = 56°
Therefore, option A. 56° is the correct option.
