SOLUTION: An artist wants her painting to be in the shape of a golden rectangle. If the length of the painting is 36 inches, then what should be the width?
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Question 223667: An artist wants her painting to be in the shape of a golden rectangle. If the length of the painting is 36 inches, then what should be the width?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
a "golden" rectangle is one that when divided into a square and a rectangle (by a line across the width)
___ the resulting smaller rectangle is similar to the original (also "golden")
___ in other words, the ratio of the length to width is the same
in mathematical terms ___ L/W = W/(L-W)
"cross" multiplying __ L^2 - LW = W^2
36^2 - 36W = W^2 ___ 0 = W^2 + 36W - 1296
use quadratic formula to find W
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