High School Math : Understanding Complementary and Suplmentary Angles

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #11 : Trigonometry

Are  and  complementary angles?

Possible Answers:

No

Not enough information

Yes

Maybe

Correct answer:

Yes

Explanation:

Complementary angles add up to . Therefore, these angles are complementary.

Example Question #2 : Angles

What angle is complementary to ?

Possible Answers:

Correct answer:

Explanation:

Two complementary angles add up to .

Therefore, .

Example Question #3 : Angles

Which of the following angles is supplementary to ?

Possible Answers:

Correct answer:

Explanation:

When two angles are supplementary, they add up to .

For this problem, we can set up an equation and solve for the supplementary angle:

Example Question #4 : Angles

What angle is supplementary to ?

Possible Answers:

Correct answer:

Explanation:

Supplementary angles add up to . That means:

Example Question #2 : Angles

Solve for .

Question_2

(Figure not drawn to scale).

Possible Answers:

Correct answer:

Explanation:

The angles are supplementary, therefore, the sum of the angles must equal .

Example Question #3 : Angles

Are  and  supplementary angles?

Possible Answers:

Yes

No

Not enough information

Correct answer:

Yes

Explanation:

Since supplementary angles must add up to , the given angles are indeed supplementary.

Example Question #7 : Angles

Which of the following angles is complementary to ?

Possible Answers:

Correct answer:

Explanation:

Two complementary angles add up to .

Example Question #8 : Angles

What angle is supplementary to ?

Possible Answers:

Correct answer:

Explanation:

When two angles are supplementary, they add up to .

Solve for :

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