Area = length*width
new Area = 2 * length * width
Area is doubled
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You can find the perimeter of a rectangle if you know its area and the length of one side. Divide the area by the length of the known side and the quotient will be the length of a side perpendicular to the known side, and then multiply the sum of the two sides by two to find the perimeter.
Each side will be 6. Given only an area of 63, the shape will be a rectangle with four equal sides and each angle being 90 degrees.
Doubling the length of the sides of a square results in the area being quadrupled (four times the original area).
Length of rectangle is 18 units and its width is 2 units
A square with a side length of 15 cm has an area of 225 square cm