1.6- Angle Pair Relationships

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What are complementary angles?

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Complementary angles are two angles whose measures add up to 90 degrees.

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What are supplementary angles?

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Supplementary angles are two angles whose measures add up to 180 degrees.

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What is a linear pair of angles?

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A linear pair of angles is a pair of adjacent angles formed when two lines intersect. The angles in a linear pair are supplementary.

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If two angles are complementary, what is the sum of their measures?

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The sum of the measures of two complementary angles is 90 degrees.

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If two angles are supplementary, what is the sum of their measures?

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The sum of the measures of two supplementary angles is 180 degrees.

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What is the relationship between vertical angles?

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Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

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True or False: All pairs of supplementary angles are linear pairs.

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False. Not all supplementary angles are linear pairs; they just need to add up to 180 degrees.

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