Intro to quadrilaterals (Full video)

Khan Academy

Supporting grades: 5

Description: Learn the term quadrilateral as well as trapezoid, parallelogram, rectangle, rhombus, and square. Created by Sal Khan. What I want to do in this video is give an overview of quadrilaterals. And you can imagine, from this prefix, or, I guess you could say, the beginning of this word involves four of something. And quadrilaterals, as you can imagine, are shapes. And we're going to be talking about two-dimensional shapes that have four sides and four vertices and four angles.

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