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What is a rectangle?

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Note: A rectangle is one of the many fundamental shapes you'll see in math. Rectangles have special properties that can be very useful in helping you solve a problem. This tutorial introduces you to rectangles and explains their interesting qualities! read more

Rectangle (Jump to Area of a Rectangle or Perimeter of a Rectangle) A rectangle is a four-sided flat shape where every angle is a right angle (90°). read more

To calculate the area of a rectangle, multiply the length by the width. A rectangle with a length of 10 feet and a width of 5 feet has an area of 50 square feet. read more

A rectangle with four sides of equal length is a square. The term oblong is occasionally used to refer to a non-square rectangle. A rectangle with vertices ABCD would be denoted as ABCD. The word rectangle comes from the Latin rectangulus, which is a combination of rectus (as an adjective, right, proper) and angulus . read more

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