Complementary Angles Practice

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Question 1

Which of the following angles are complementary angles?

identify all the complementary angles

Answer

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Select and check your answer...

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

Step by Step Solution

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    Step 1

    Two angles are complementary angles when these angles add to 90°. Hence, angle I and II are complementary angles. This is because 55° add with 35° gives 90°.

    I and II are complementary angles
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    Step 2

    As for angle III and IV, they are also complementary angles. This is because when we add 25° with 65°, we get 90°.

    III and IV are complementary angles
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    Step 3

    Clearly, I-II and III-IV are complementary angles. Hence, the answer is B.

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