SOLUTION: I need help with this word problem. The height of a triangle is 4cm less than the length of the base. If the area of the triangle is 48cm^2, find the height and the length of the

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I need help with this word problem. The height of a triangle is 4cm less than the length of the base. If the area of the triangle is 48cm^2, find the height and the length of the      Log On


   



Question 190295: I need help with this word problem.
The height of a triangle is 4cm less than the length of the base. If the area of the triangle is 48cm^2, find the height and the length of the base.

Answer by feliz1965(151) About Me  (Show Source):
You can put this solution on YOUR website!
The area of a triangle is found using A = (1/2)(base)(height).
height = x - 4
base = x
We are given the area to be 48.
Here is the set up:
48 = (x)(x - 4)
Can you finish now?
When you find the value of x, replace x for the base and height information given above.