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McGraw Hill Glencoe Geometry, 2012
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McGraw Hill Glencoe Geometry, 2012 View details
1. Classifying Triangles
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Exercise 21 Page 241

Check the angle measures.

Obtuse

Practice makes perfect
Consider △ UYZ. On this triangle, the measure of angle Y is 120^(∘). Since 120 is greater than 90 and less than 180, ∠ Y is an obtuse angle.

Since this triangle has an obtuse angle, △ UYZ is an obtuse triangle.

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arrow_right Check Your Understanding p.240
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arrow_right Practice and Problem Solving p.241-243
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arrow_right H.O.T. Problems p.243
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arrow_right Standardized Test Practice p.244
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arrow_right Spiral Review p.244
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arrow_right Skills Review p.244
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