Question 1036924: If the ratio of side lengths a:b:c in triangle ABC is 2:3:4, and the perimeter is 99, calculate each side length for triangle ABC~
This is a question that has been repeating in my homework, could a tutor possibly explain how to solve a problem such as it? I understand how to calculate angles, however side lengths in relation to the perimeter are a bit out of my zone. Would I use a similar equation, like (2x+3x+4x=99)?
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! If the ratio of side lengths a:b:c in triangle ABC is 2:3:4, and the perimeter is 99, calculate each side length for triangle ABC~
:
You are on the right track.
Actually you don't even care about the angles, you're give the sides and the perimeter, therefore.
let x = the multiplier
then
2x = side a
3x = side b
4x = side c
:
2x + 3x + 4x = 99
9x = 99
x = 99/9
x = 11 is the multiplier
find the sides
2(11) = 22 is side a
3(11) = 33 is side b
4(11) = 44 is side c
|
|
|
