Question

The altitude of a triangle is 5 m less than its base. The area of the triangle is 42 m^2. Find the length of the base.

Answer 1

LOL
very nice

h = b - 5

(1/2)*b*h = area
(1/2)*b*h = 42

b(b - 5) = 84
b^2 - 5b - 84 = 0
(b + 7)(b - 12)
b = -7, 12
b has to be positive because it's the length

so be is 12

Answer 2

oh okay i get now thank you

Answer 3

no problem