1. Find the measure of the complementary angle to a 45-degree angle.
Solution: The measure of the complementary angle to a 45-degree angle is 90 degrees - 45 degrees = 45 degrees.
2. Find the measure of the supplementary angle to a 120-degree angle.
Solution: The measure of the supplementary angle to a 120-degree angle is 180 degrees - 120 degrees = 60 degrees.
3. If angle A is a supplementary angle to angle B and angle A measures 60 degrees, what is the measure of angle B?
Solution: The measure of angle B is 180 degrees - 60 degrees = 120 degrees.
4. If angle X is a complementary angle to angle Y and angle X measures 30 degrees, what is the measure of angle Y?
Solution: The measure of angle Y is 90 degrees - 30 degrees = 60 degrees.
5. Find the measure of the supplementary angle to a 150-degree angle.
Solution: The measure of the supplementary angle to a 150-degree angle is 180 degrees - 150 degrees = 30 degrees.
supplementary angles practice
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