Complementary Angles Worksheets
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6th Grade Math
There are six sets of angle worksheets:
- Angles on a Straight Line
- Angles at a Point
- Vertical Angles
- Complementary Angles
- Supplementary Angles
- Complementary & Supplementary Angles
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.
Click on the following worksheet to get a printable pdf document.
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More Complementary Angles Worksheets
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(Answers on the second page.)
Complementary Angles Worksheet (find unknown angles)
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Types of Angles
Angles in a Straight Line
Vertical Angles
Complementary Angles
Supplementary Angles
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