Two Angles are Complementary when they add up to 90 degrees (a Right Angle).

They don't have to be next to each other, just so long as the total is 90 degrees.

Examples:

• 60° and 30° are complementary angles.

• 5° and 85° are complementary angles.

Try dragging the points below:

They don't have to be next to each other, just so long as the total is 90 degrees.

Examples:

• 60° and 30° are complementary angles.

• 5° and 85° are complementary angles.

Try dragging the points below:

See: Supplementary Angles

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