Asked by yanet

the hight 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?
Answered by Reiny
let the base be x units long, where x is a positive number
then the height is 4x units long

Area of triangle = 1/2 base x height
18 = 1/2(x)(4x)
9 = x^2
x = 3

so .....
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