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  • Common Complementary Angles Basic Geometry Worksheets
  • Five Degree Complementary Angles Basic Geometry Worksheets
  • Arbitrary Complementary Angles Basic Geometry Worksheets

Basic Geometry:
Complementary Angle Subtraction

Geometry worksheets with subtraction problems for finding complementary angles (Angles whose sum is 90 degrees).

Common Complementary Angles

Five Degree Complementary Angles

Arbitrary Complementary Angles

Complementary Angle Subtraction Worksheets

A complementary angle is the angle when added to another angle and creates a sum of 90 degrees (or a right angle). This operation is very common in geometry, and practicing the basic arithmetic using these worksheets will make solving many geometric proofs or other more advanced problems feel much less strenuous. The first set of worksheets here deal with very common complementary angles that are multiples of 10, 15 and 30 degrees. The second series deals with finding complementary angles measuring in 5 degree increments, and the final set of worksheets requires calculations of arbitrary degree measurement.

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