Question

The height of a triangle is 4 m less than its base. The area of the triangle is 48 m2. Find the length of the base.



A.
7 m


B.
8 m


C.
11 m


D.
12 m

Answer 1

D?

Answer 2

hmm

Answer 3

when they said area of triangle is 48 do they mean the base?

Answer 4

The area of a triangle equals 1/2 times base times height
Let x represent the triangle's base
48 = 1/2 * x * (x-4)
96 = x^2 -4x
x^2 -4x -96 = 0


factor the equation
(x-12) * (x+8) = 0
x=12, x=-8
correct solution is the base equals 12 meters

Answer 5

idk the bottom im guessing list im stupid and brain dead when it comes to math lol :)

Answer 6

Let height be h
Base = h + 4
Area = 48
1/2bh = 48
bh = 96
h(h + 4) = 96
h^2 + 4h - 96 = 0
(h + 12)(h - 8) = 0
h = 8
Base = 12m

Answer 7

yay thank you both

Answer 8

welcome and yall are slow i did that problem in under a minute

Answer 9

area of a triangle=1/2*base* hieght.......so base =12

Answer 10

k