# Interactive video lesson plan for: Angles of a Triangle - Triangle Sum Theorem - MathHelp.com

#### Activity overview:

For a complete lesson on angles of a triangle and the triangle sum theorem, go to http://www.MathHelp.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn the definition of a triangle, as well as the following triangle classifications: scalene, isosceles, equilateral, acute, obtuse, right, and equiangular. Students also learn the triangle sum theorem, which states that the sum of the measures of the angles of a triangle is 180 degrees. Students are then asked to solve problems related to the triangle sum theorem using Algebra.

Tagged under: triangle,sum,theorem,angles,triangles,angle,find,finding,geometry,math,acute,obtuse,scalene,isosceles

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