3.4 parallel lines and the triangle angle sum...
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3.4 Parallel Lines and the Triangle Angle Sum Theorem
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3.4 Parallel Lines and the Triangle AngleSum Theorem
Objectives:*Classify triangles and find the measures of their angles.*Use exterior angles of triangles.
3.4 Parallel Lines and the Triangle Angle Sum Theorem
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Check Skills You'll NeedClassify each angle as acute, right, or obtuse.1. 2. 3.
Solve each equation.4. 30 + 90 + x = 180 5. 55 + x + 105 = 180
6. x + 58 = 90 7. 32 + x = 90
3.4 Parallel Lines and the Triangle Angle Sum Theorem
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Classify each triangle by its angles.
Classify each triangle by its sides.
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3.4 Parallel Lines and the Triangle Angle Sum Theorem
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3.4 Parallel Lines and the Triangle Angle Sum Theorem
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Homework: page 150
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