A rectangular poster is to have 50 squared inches for printed matter. It is to have a 1 inch. margin on each side and a 2 inch. margin at the top and bottom. Find the dimensions of the poster so that the amount of paper used is minimized.
Horizonatal width=
Vertical Height=
A rectangular poster is to have 50 squared inches for printed matter. It is to have a 1 inch. margin on each side and a 2 inch. margin at the top and bottom. Find the dimensions of the poster so that the amount of paper used is minimized.
Horizonatal width=
Vertical Height=
2 answers
Let the printed area xy=50
The total area is
a = (x+2)(y+4) = (x+2)(50/x + 4)
= 4x + 58 + 100/x
so, find where da/dx = 0 (and x>0)
The total area is
a = (x+2)(y+4) = (x+2)(50/x + 4)
= 4x + 58 + 100/x
so, find where da/dx = 0 (and x>0)
1 answer