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Exterior Angle Theorem - YourTeacher.com - Geometry Help

For a complete lesson on the exterior angle theorem, go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students are asked to solve word problems that involve the triangle sum theorem. Students also learn the exterior angle theorem, which states that the exterior angle of a triangle is equal to the sum of the measures of the remote interior angles. Students are then asked to solve problems related to the exterior angle theorem using Algebra.
Length: 01:26

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