Asked by LittlePanda
An architect needs to design a rectangular room with an area of 77ft^2. What dimensions should he use in order to minimize the perimeter?
I keep getting stuck on this problem. I know when I take square root of 77, it gives me 8.77. But how do I get there.
xy= 77, y= 77/x
P= 2x+2y, P= 2x+2(77/x), P'= 2+154/x
then I have x^2= 154/2
I keep getting stuck on this problem. I know when I take square root of 77, it gives me 8.77. But how do I get there.
xy= 77, y= 77/x
P= 2x+2y, P= 2x+2(77/x), P'= 2+154/x
then I have x^2= 154/2
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