Question

The base of a triangle is 8cm greater than the height (h+8) the area is 42cm^2. find the height and length of the base.

Answer 1

im trying to use a=1/2*b*h and am getting 38 for the height which is all wrong.

Answer 2

area of triangle = 1/2 * base *height
42= 1/2 * (h+8) h
84=h^2 + 8h
h^2+8h-84=0
(h-6)(h+14)=0
h=6 or -14
the height can never be negative... so its 6

Answer 3

base= 6+8 = 14

Answer 4

thank you