Asked by ligas

using the two existing corner sides of an existing wall, what is the maximum rectangular area that can be fenced by a fencing material 30 ft long?

Answers

Answered by Steve
Assuming the two walls meet at a right angle,

x+y = 30
a = xy = x(30-x)
this is just a parabola, with vertex at x=15. As usual, the area is a square.

You can take the derivative if you want, but no calculus needed here...
Answered by Anonymous
225
Answered by ~' '~
just testing this account after a year
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