SOLUTION: Question 2.2. The height of a triangle is 6 m more than its base. The area of the triangle is 56 m2. Find the length of the base. (Points : 1) 7 m 8 m 14

Algebra ->  Triangles -> SOLUTION: Question 2.2. The height of a triangle is 6 m more than its base. The area of the triangle is 56 m2. Find the length of the base. (Points : 1) 7 m 8 m 14       Log On


   



Question 872083: Question 2.2. The height of a triangle is 6 m more than its base. The area of the triangle is 56 m2. Find the length of the base.
(Points : 1)
7 m
8 m
14 m
15 m

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
A = (1/2)bh = 56m^2
bh = 112
b(b+6m) = 112m^2
b^2 + 6b - 112 = 0
(b + 14)(b-8) = 0, b = 8m
(tossing out negative solution)