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Perimeter of a Rectangle

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Perimeter is the distance around a closed figure.
**natttt***Posted on 2011-01-21 18:31:25*

Calculating the Perimeter of a Rectangle

The perimeter of a rectangle is the distance around the outside of the rectangle. A rectangle has four sides with opposite sides being congruent. The formula for finding the perimeter is Side A + Side B + Side A + Side B. This could also be stated as 2*Side A + 2*Side B or 2*(Side A + Side B)

Example: Find the perimeter of a rectangular field of length 50 m and width 40 m.

P = 2l + 2w

P = 2*50 + 2*40

P = 2 * 90 = 180 m

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