SOLUTION: the width of a triangle i 3 inches less than its length, and the area is 108 square inches.what are the length and width of the rectangle?
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Question 795277: the width of a triangle i 3 inches less than its length, and the area is 108 square inches.what are the length and width of the rectangle?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
the width of a triangle is 3 inches less than its length, and the area is 108 square inches.what are the length and width of the rectangle?
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Let length be L
Then width = L-3
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Area = length*width
108 = L(L-3)
L^2 - 3L - 108 = 0
(L-12)(x+9) = 0
Positive solution:
Length = 12 inches
Width = L-3 = 9 inches
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Cheers,
Stan H.
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