Supplementary Angles Practice

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Question 1

Which of the following angles are supplementary angles?

identify all the supplementary angles

Answer

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Select and check your answer...

A. I-II and III-IV
B. II-III and I-IV
C. I-III and II-IV
D. None

Step by Step Solution

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    Step 1

    Two angles are supplementary angles when these angles add to 180°. Hence, angle I and III are supplementary angles. This is because 101° add with 79° gives 180°.

    I and III are supplementary angles
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    Step 2

    As for angle II and IV, they are also supplementary angles. This is because when we add 65° with 115°, we get 180°.

    I and III are supplementary angles
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    Step 3

    Clearly, I-III and II-IV are supplementary angles. Hence, the answer is C.

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