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Lesson 56: Parallelograms, Trapezoids, and Rhombuses
This lesson introduces you to three new shapes that come up in math from time to time. It's important to know their properties and how to recognize them.
Don't forget to watch the embedded YouTube video clip for this lesson at the bottom of the page.
Take a look at the shapes below. The one on the left is called a rhombus. It's basically a slanted square. All four sides are of equal length. The middle shape is called a parallelogram. It's basically a slanted rectangle. The top and bottom sides are of equal length, and the left and right sides are of equal length. The shape on the right is called a trapezoid. The top and bottom sides are parallel, and are not equal lengths. Parallel means that they will always be the same distance apart, and would never meet if they were extended. The left and right sides are not parallel.
Later you'll learn more properties about these shapes. For now just be able to identify them.
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