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

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Presentation on theme: "Sum of the Angle Measures of a Triangle Angle Pairs Lesson 40Power Up GPage 285."— Presentation transcript:

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

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

3 Triangles A B C 40°

4 Triangles A BC 95° 40°

5 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. 1 2 3 4

6 Example A B C D E 125° 25°

7 Practice Problems ›a-e

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