The length of a rectangle is three times its width.If the perimeter of the rectangle is 40 cm, find its length and width
Question
Solution 1
Let's denote the width of the rectangle as x. According to the problem, the length of the rectangle is three times its width, so we can denote the length as 3x.
The formula for the perimeter of a rectangle is P = 2l + 2w, where l is the length and w is the width.
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