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Question

a mathematician is given 20 feet of fencing and has to find the largest area possible using those 20 feet of fencing. what is the largest area?

try thinking out of the box

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Circle- 99.7 square feet

Edited by puzzled
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Circle: circumference = 20, area = 31.83.

Oops! Editted to get the spoiler stuff inside the bloody spoiler.

Edited by Gambler
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He can layout the fence in any closed shape he wishes, and in doing so he will have enclosed a small area (on one side), and the remainder of the surface area of the earth (on the other side). Going to a bigger planet offers more possibilities.

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straight:

314.17 sq ft.

Twisted:

earths surface area- 314.17 sq ft.

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straight:

314.17 sq ft.

Twisted:

earths surface area- 314.17 sq ft.

Actually the twisted version will be:

Earths surface area - 0 sq ft. (Why make a big area with the fence wire if you want to substract it from trhe Earth's area? Just put it somewhere on the floor in a ball)

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