Question

Describe the difference between Complementary angles and Supplementary Angles.

Answer 1

Complementary angles equal 90 degrees and supplementary angles equal 180 degrees. It is easier to remember the complementary as 90 and to double that to get the supplementary or equal to 190 degrees. Or you could think of it in alphabetical order. C is before s and complementary angles are less that supplementary angles.

Answer 2

If two angles are complementary, then the

sum of their measures is 90 degrees.

For example, if we have a 30° angle and a 60° angle, these two angles

are complementary because the sum of their measures is 90 degrees.

If two angles are supplementary, then the

sum of their measures is 180 degrees.

For example, if we have a 100° angle and an 80° angle,

then these two angles are supplementary because

the sum of their measures is 180 degrees.