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Minds On

Area relationships

A rectangle is a quadrilateral with 4 right angles.

A square also has 4 right angles.

A rectangle with base 4 cm and height 1 cm is the same as a rectangle with base 1 cm and height 4 cm.

The two rectangles are congruent. Is every square a rectangle? Is every rectangle a square?

Consider the following picture. What shape is each design?

Example of 3 shapes Picture 1:An 8 by 8 quadrangular grid Base: 8Height: 88 x 8 = 64Picture 2:A 3 by 3 quadrangle made of X’s Base: 3Height: 33 x 3 = 9Picture 2:A 12 by 12 quadrangle made of dots Base: 12Height: 1212 x 12 = 144

What math words do you associate with squares?