A few days ago
hey i need help in math!!!!!?
it’s a math problem goes like this…the area of a triangle is 27 square feet. its height is three times the lenth of its base. Find the height and base of the triangle.
THANK U!!!! it might be easy for some of ya, but to me is like hell, i hate math, algebra and all that ****…..
Top 3 Answers
A few days ago
Favorite Answer
me 2, sorry i dont know the answer… the ones above me probably do
0
A few days ago
A of triangle = 1/2 x H x B
so, if H = 3 B and A = 27 you can do:
A = 1/2 x H x B
27 = 1/2 x 3B x B
27 = 1/2 x 3B^2
multiply by 2
54 = 3B^2
divide by 3
18 = B^2
squareroot
B = rt 18 = 3 rt 2
since you already know that H = 3B
you can do:
H = 3( 3rt2)
H = 9rt2
0
A few days ago
set the problem into an equation using the area formula for a triangle. so A=1/2bh
so 27=1/2 *3x*x
then solve for x, so 27=3/2 x^2
multiply both sides by 2/3 (the same as dividing by 3/2)
so 18=x^2
then square root both sides. so that your base is 3 square root 2
multiply that by 3 for your height, so its 9 square root 2
0
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