SOLUTION: The perimeter of a rectangle is 30 inches, and its area is 36 in2. Find its length and width.
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Question 363339: The perimeter of a rectangle is 30 inches, and its area is 36 in2. Find its length and width.
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
2l +2w = 30, or l+w = 15. we have l = 15 - w.
Also, area is lw = 36. By direct substitution, (15 - w)w = 36.
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w = 3 or w = 12. The rectangle is 3"x 12".
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