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Mrs. Waterston wants a fence in area for her dog. She has 72 feet of fencing and wants to use all of it to enclose a space with the greatest possible area. Which dimension will give her a space with the
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Mrs. Waterston wants a fence in area for her dog. She has 72 feet of fencing and wants to use all of it to enclose a space with the greatest possible area. Which dimension will give her a space with the greatest possible area?

User Kkyr
by
8.4k points

1 Answer

4 votes
biggest area for smallest perimiter is a circle
she has perimiter aka circumference=2pir


72=2pir
divide both sides by 2
36=pir
divid both sides by pi
11.4592=r
radius=11.4 feet
circle is biggest area
User Singe Batteur
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7.8k points
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