Q:

# Can you find the width of a rectangle if you only know the perimeter?

A:

If the perimeter of a rectangle is known, finding the width is only possible if the length is also known. Infinite combinations of lengths and widths of a rectangle exist with any given perimeter.

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The perimeter of a rectangle is given by the formula P = 2L + 2W, where P represents the perimeter, L represents the length and W refers to the width. If a given rectangle has a perimeter of 100 inches, the rectangle might have a width of 20 inches and a length of 30 inches. Two times 20 plus two times 30 does give a total perimeter of 100 inches. However, it is also possible that the width is 10 inches and the length is 40 inches.

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## Related Questions

• A:

To find the total area of a square or rectangular space, it is necessary to multiply the length by the width. The product of this multiplication is expressed in square units. Finding the area of a circular space requires multiplying the square of the radius by pi.

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The perimeter of a kite is the total distance around the outside of its shape, which means the length of all four of its sides added together. Since a kite has two pairs of matching sides, the standard formula is that the perimeter equals "2a" plus "2b."

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To determine the square footage of a rectangle, multiply the length by the width. The answer is in given square units. For example, if a lawn is 20 feet by 30 feet, the measurement is 600 square feet. This is also referred to as "area."