Question 817845
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Hi,
the area of a triangle is 20 inches. the base is X. the height is x+3.
{{{A = (1/2)x(x+3) = 20in^2}}}
  x^2 + 3x = 40
  x^2 + 3x - 40 = 0
 (x+8)(x-5) = 0   x = 5in (tossing out negative solution for unit measure
Base = 5in  and height is 8in
 CHECKING our answer***
{{{(1/2)5*8 = 20in^2}}}