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Pre-Algebra: Lesson 112

2-Dimensional Figures
Angles of a Triangle

Lesson Description

Students learn to classify triangles as acute (all angles acute), right (one angle right), or obtuse (one angle obtuse). Students also learn that the sum of the measures of the angles of a triangle is 180 degrees, and students are asked to use this formula to find the measures of missing angles in given triangles.

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