## Complementary angles

### Complementary angles are two angles that add up to a right angle, which is exactly 90 degrees

Complementary angles are two angles that add up to a right angle, which is exactly 90 degrees. When combined, the sum of two complementary angles will always be 90 degrees.

For example, let’s consider angle A and angle B. If angle A measures 30 degrees, then angle B would be its complementary angle. To find the measure of angle B, we can subtract the measure of angle A from 90 degrees.

90° – 30° = 60°

Therefore, angle B measures 60 degrees, and when added to angle A (30 degrees), they form a pair of complementary angles.

Complementary angles can take various measurements, as long as their sum equals 90 degrees. Some examples include 45 degrees and 45 degrees, 20 degrees and 70 degrees, or even 75 degrees and 15 degrees.

It’s worth noting that complementary angles do not have to be adjacent or connected. Two angles can be complementary without being directly next to each other. As long as their sum equals 90 degrees, they are considered complementary.

Complementary angles play a significant role in solving problems and finding unknown angles. If you know that two angles are complementary, you can use this knowledge to find missing angle measurements in geometry problems. Similarly, if you know the measurement of one angle in a pair of complementary angles, you can find the measurement of its complement by subtracting it from 90 degrees.

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