The length of a rectangle is twice its width. If the perimeter of the rectangle is , find its area.
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A rectangle has two dimensions, length and width. You haven't said what the width is. The perimeter is the distance around the rectangle. Imagine going round it. You would go 42 inches, then a width, then another 42 inches, then another width. In general, the perimeter of a rectangle is twice its length plus twice its width.
4
98 square feet
Length of rectangle is 5 inches and its width is 4 inches Check: 2*(5+4) = 18 inches which is its perimeter
The length of the rectangle is 18cm. The width of the rectangle is 9cm.