Answer:
40.8°
Step-by-step explanation:
Given that,
The measure of an angle is 49.2°.
We need to find the measure of its complementary angle. We know that for a complementary angle, the sum of two angles is equal to 90 degrees. So,
a+b = 90
49.2+b = 90
b = 90-49.2
b = 40.8°
So, the measure of its complementary angle is 40.8°.