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| Math Central | Quandaries & Queries |
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Question from Terrie, a parent: I have to order fencing for a 25-acre, rectangular field.One side of the field is 1/4 mile. How many yards of fencing do I need to enclose the field? |
Terrie,
Each acre is 4840 square yards. 1/4 of a mile is 1760/4 yards.
So your field is 4840x25 square yards. Divide that by the length of one side and you get the length of the other side:
(4840 x 25) / (1760 / 4)
Knowing the lengths of both sides, you can just add up all the sides that require fencing.
Cheers,
Stephen La Rocque.
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