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| Math Central | Quandaries & Queries |
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Question from gregg, a parent: the perimeter of a rectangle is 70 feet. the ratio of length to width is 4:3. how would i calculate the length of the height and width? |
Gregg,
Suppose the length is L feet and the width is W feet. You know two facts.
- The perimeter is 70 feet so L + W + L + W = 70 or
L + W = 35
- The ratio L:W is 4:3 so
L/W =4/3
From the first equation L = 35 - W and from the second equation 3L = 4W.
Can you now find L and W?
Penny
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