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lesson 13
1 hour

Angle Sum of a Triangle


Description

Students know the angle sum theorem for triangles; the sum of the interior angles of a triangle is always 180°.

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From EngageNY.org of the New York State Education Department. Grade 8 Mathematics Module 2, Topic C, Lesson 13. Available from engageny.org/resource/grade-8-mathematics-module-2-topic-c-lesson-13; accessed 2015-05-29.
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