You can't find the widths of a rectangle with the lengths because the widths can be anything lower than the lengths. Like if your rectangle had a length of 7 the width can be 6, 5, 4, 3, 2, and so on.
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A square has four sides of equal length. A rectangle has lengths that are different from the widths.
6 is your answer because the box is 3 lengths and 2 widths and its basicly a 3 by 2 box.
A rectangle has lengths different from the widths. (12" x 8" is a rectangle). A square has all sides of equal length. (7" x 7" is a square).
PR = 2 X Lengths + 2 X Widths (P = 2l + 2w) PS = 2 X Lengths + 2 X Widths (P = 2l + 2w) PT = Perimeter = a + b + c (add the length of the three sides
The perimeter of a rectangle, like the perimeter of any closed two-dimensional figure, is the distance around it. The perimeter of the rectangle is the sum of two lengths plus two widths.