Quiz about Angles: Complementary and Supplementary Practice

Question 1

What is the measure of the complementary angle to $$30^\circ$$ ?

Accepted Answer

$$60^\circ$$

Answer

$$50^\circ$$

Answer

$$70^\circ$$

Answer

$$90^\circ$$

Question 2

If two angles are supplementary and one angle measures $$110^\circ$$ , what is the measure of the other angle?

Accepted Answer

$$70^\circ$$

Answer

$$60^\circ$$

Answer

$$80^\circ$$

Answer

$$90^\circ$$

Question 3

Which of the following pairs of angles are complementary?

Accepted Answer

$$80^\circ$$ and $$20^\circ$$

Answer

$$45^\circ$$ and $$55^\circ$$

Answer

$$30^\circ$$ and $$60^\circ$$

Answer

$$90^\circ$$ and $$10^\circ$$

Question 4

An angle measures $$75^\circ$$ . What is the measure of its supplementary angle?

Accepted Answer

$$105^\circ$$

Answer

$$95^\circ$$

Answer

$$115^\circ$$

Answer

$$125^\circ$$

Question 5

If angle $$A$$ is $$40^\circ$$ , what is the measure of its complementary angle?

Accepted Answer

$$50^\circ$$

Answer

$$40^\circ$$

Answer

$$60^\circ$$

Answer

$$70^\circ$$

Question 6

Two angles are complementary. If one angle is $$x^\circ$$ , what is the expression for the other angle?

Accepted Answer

$$90 - x$$

Answer

$$180 - x$$

Answer

$$x - 90$$

Answer

$$x + 90$$

Question 7

Two angles are supplementary. If one angle is $$x^\circ$$ , what is the expression for the other angle?

Accepted Answer

$$180 - x$$

Answer

$$90 - x$$

Answer

$$x - 180$$

Answer

$$x + 180$$

Question 8

What is the measure of the complementary angle to $$15^\circ$$ ?

Accepted Answer

$$75^\circ$$

Answer

$$65^\circ$$

Answer

$$85^\circ$$

Answer

$$95^\circ$$

Question 9

If two angles are supplementary and one angle measures $$45^\circ$$ , what is the measure of the other angle?

Accepted Answer

$$135^\circ$$

Answer

$$125^\circ$$

Answer

$$145^\circ$$

Answer

$$155^\circ$$

Question 10

Which of the following pairs of angles are supplementary?

Accepted Answer

$$120^\circ$$ and $$60^\circ$$

Answer

$$60^\circ$$ and $$30^\circ$$

Answer

$$90^\circ$$ and $$90^\circ$$

Answer

$$100^\circ$$ and $$80^\circ$$

Question 11

An angle measures $$10^\circ$$ . What is the measure of its complementary angle?

Accepted Answer

$$80^\circ$$

Answer

$$70^\circ$$

Answer

$$90^\circ$$

Answer

$$100^\circ$$

Question 12

An angle measures $$150^\circ$$ . What is the measure of its supplementary angle?

Accepted Answer

$$30^\circ$$

Answer

$$20^\circ$$

Answer

$$40^\circ$$

Answer

$$50^\circ$$

Question 13

If angle $$B$$ is $$25^\circ$$ , what is the measure of its complementary angle?

Accepted Answer

$$65^\circ$$

Answer

$$55^\circ$$

Answer

$$75^\circ$$

Answer

$$85^\circ$$

Question 14

If angle $$C$$ is $$120^\circ$$ , what is the measure of its supplementary angle?

Accepted Answer

$$60^\circ$$

Answer

$$40^\circ$$

Answer

$$50^\circ$$

Answer

$$70^\circ$$

Question 15

What is the measure of the complementary angle to $$45^\circ$$ ?

Accepted Answer

$$45^\circ$$

Answer

$$35^\circ$$

Answer

$$55^\circ$$

Answer

$$65^\circ$$

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