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Area of a Rectangle


A rectangle is a four-sided polygon with two pairs of parallel sides. The angles between each of the sides are all right angles. A square is a type of rectangle that has four sides of the same length. 80808080


Area - A quantity that expresses the extent of a two-dimensional shape.
Square - A polygon with four equal straight sides and four right angles.
Rectangle - A polygon with four straight sides and four right angles, esp one with unequal adjacent sides.
Right Angle - An angle of 90 degrees.


Area of a Rectangle Formula

Area×ab ext{Area} imes a * b, where a and b are the lengths of the sides of the rectangle.

If a rectangle has sides of length 4 and 5, for example, the area is

Area=a×b ext{Area} = a imes b

Area=4×5 ext{Area} = 4 imes 5

Area=20 ext{Area} = 20


Area of a Rectangle

Area=LengthWidth\text{Area} = \text{Length} * \text{Width}
Area=1510\text{Area} = 15 * 10
Area=150\text{Area} = 150

Area of a Rectangle (w/ Decimals)

Area=LengthWidth\text{Area} = \text{Length} * \text{Width}
Area=12.510.8\text{Area} = 12.5 * 10.8
Area=135\text{Area} = 135

Area of a Rectangle Worksheets (PDF)

Area of a Rectangle Worksheet 1

Area of a Rectangle Worksheet 2

Area of a Rectangle Worksheet 3