SOLUTION: the height of a triangle is four times the length of the base. find the base and height of the triangle if the area is 18 square inches.

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Question 307970: the height of a triangle is four times the length of the base. find the base and height of the triangle if the area is 18 square inches.
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
Let x= base
4x= height

Area = %28b%2Ah%29%2F2
Area = %28x%2A4x%29%2F2=18
2x%5E2=18%7D%7D%0D%0A%7B%7B%7Bx%5E2=9
x=3 inches (NOTE: Reject x=-3!)

Base = x = 3 inches
Height=4x=12 inches

Dr. Robert J. Rapalje, Retired