How to Classify a Triangle as an Isosceles Triangle.

What is an isosceles trapezoid. The video goes over the properties that are unique to an isosceles trapezoid.

Video Guide

:12 Properties of an isosceles triangle explained (Quadrilateral with two parallel sides and two non-parallel sides)

:43 Unique properties of an isosceles trapezoid

1:02 Angles of an isosceles triangle explained

1:29 How to find the angle measure of an isosceles triangle explained

2:17 Explanation of complementary and supplementary angles of an isosceles trapezoid