SOLUTION: How to solve: If triangular area is 160ft^2 and the height is 4ft more than it's base. Find the base.

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Question 812922: How to solve:
If triangular area is 160ft^2 and the height is 4ft more than it's base. Find the base.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1/2 b*h=a
b*h=320
h=b+4,
(b+4)*b=320
b^2+4b -320=0
b = 16, h = 20