Complementary Angles Worksheets

There are six sets of angle worksheets:

Examples, solutions, videos, and worksheets to help grade 6 learn how to use the complementary angles property to find unknown angles.

How to use the complementary angles property?

Complementary angles are pairs of angles that add up to 90 degrees when combined. In other words, if you have two angles that are complementary to each other, the sum of their measures is 90 degrees.

Mathematically, if ∠A and ∠B are complementary angles, you can represent this as:

∠A + ∠B = 90 degrees

Let one of the angles be x degrees. The other angle, which is complementary to it, will be (90 - x) degrees. For example, if one angle is 40 degrees, the complementary angle is 90 - 40 = 50 degrees.

Understanding complementary angles is essential in geometry and trigonometry, as they are used to solve various problems involving angles, such as finding unknown angles in geometric figures or determining the measures of angles in right triangles.

Have a look at this video if you need to review about complementary angles.

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Complementary Angles Worksheet (find unknown angles)

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