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Angle Pairs

Understand complementary angles as angles whose sum is 90 degrees and supplementary angles as angles whose sum is 180 degrees.

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Angle Pairs

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Vocabulary

Acute Angle

An acute angle is an angle with a measure of less than 90 degrees.

Angle Pairs

An angle pair is composed of two angles whose sum may add up to 180 degrees or 90 degrees.

Complementary angles

Complementary angles are a pair of angles with a sum of 90^{\circ}.

Degree

A degree is a unit for measuring angles in a circle. There are 360 degrees in a circle.

Obtuse angle

An obtuse angle is an angle greater than 90 degrees but less than 180 degrees.

Riemann sum

A Riemann sum is an approximation of the area under a curve, calculated by dividing the region up into shapes that approximate the space.

Supplementary angles

Supplementary angles are two angles whose sum is 180 degrees.

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