Sum of the Angle Measures of a Triangle Angle Pairs Lesson 40Power Up GPage 285.

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Presentation transcript:

Sum of the Angle Measures of a Triangle Angle Pairs Lesson 40Power Up GPage 285

Triangles ›All 3 angles added together = 180° A B C 45° X Z Y 60°

Triangles A B C 40°

Triangles A BC 95° 40°

Angle Pairs ›Adjacent Angles: Share a common side ›Complementary Angles: Two angles whose sum is 90° ›Supplementary Angles: Two angles whose sum is 180° ›Vertical Angles: A pair of nonadjacent angles formed by a pair of intersecting lines

Example A B C D E 125° 25°

Practice Problems ›a-e