The vertex angle of an isosceles triangle is the non congruent angle and is opposite the base

The video describes the vertex angle and works two sample problems

What are the measure of the base angles given a vertex angle of 110 degrees?

What is the measure of the vertex angle given a base angle of 70 degrees?

## Isosceles Triangle-6th Grade Math

Isosceles Triangles have two congruent angles and sides. CCSS 6.GA.1-6th Grade Math-Includes perimeter and area formulas.

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