A trapezoid has four sides along with two parallel sides and two nonparallel sides. In addition an isosceles triangle has two congruent legs and pairs of congruent angles. Todays video explains the properties of 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

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