Question

the altitude of a triangle is 6cm greater than its base. if its area is 108 square cm, find its base

Answer 1

Area = (1/2) base * height
108 = .5 * base * (base+6)
108 = .5*base^2 + 6*base
108 = base^2/2 + 3*base
base^2/2 + 3*base -108 = 0
Using quadratic formula:
base =12
altitude = 18

Answer 2

im sorry but I don't know what you did can you explain

Answer 3

@wolf1728