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How to determine if a angle is complementary or supplementary

User Sascha
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2 Answers

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Answer:

complementary = the angles add up to 90 degrees

supplementary = the angle add up to 180 degrees

User Ian Elliott
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Complementary angles are angles that add up to give 90 degrees.

As shown in the figure above, the sum of the measure of angle a and angle b will be equal to 90 degrees.

So, angle a and b are complementary angles.

Supplementary angles are angles that add up to give 180 degrees.

As shown in the figure above, the sum of the measure of angle r and angle s will be equal to 180 degrees.

So, angle r and angle s are supplementary angles.

How to determine if a angle is complementary or supplementary-example-1
How to determine if a angle is complementary or supplementary-example-2
User Gonzojive
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