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Module 3B:. Geometric Relationships. Special Pairs of Angles: Complementary Angles - Angles that have a sum of 90 degrees. 25 + 65 = 90 Supplementary Angles- Angles that have a sum of 180 degrees. 140 + 40 = 180. 65˚. 25˚. 140˚. 40˚.

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## Module 3B:

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**Module 3B:**Geometric Relationships Special Pairs of Angles: Complementary Angles- Angles that have a sum of 90 degrees. 25 + 65 = 90 Supplementary Angles-Angles that have a sum of 180 degrees. 140 + 40 = 180 65˚ 25˚ 140˚ 40˚**Vertical Angles-Angles that are formed by two intersecting**lines. They are across from each other and congruent. Adjacent Angles-Angles that share a common side, but no common interior points. They are next to each other. 130˚ 130˚ 125˚ 55˚**Angles and Parallel Lines**• Alternate Interior- Angles found inside a pair of parallel lines and on opposite sides of the transversal. They are congruent. 130˚ 130˚**Corresponding- Angles that are found on the same side of the**transversal in the same position on the other parallel line. They are congruent. 45˚ 45˚

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