SOLUTION: How do i find x when the angles for my triangle are 2x, 3x, 4x. i am stumped i can get the answer i just don't know how to i know x=20 but not sure how to show my work.

Algebra ->  Angles -> SOLUTION: How do i find x when the angles for my triangle are 2x, 3x, 4x. i am stumped i can get the answer i just don't know how to i know x=20 but not sure how to show my work.      Log On


   



Question 460714: How do i find x when the angles for my triangle are 2x, 3x, 4x. i am stumped i can get the answer i just don't know how to i know x=20 but not sure how to show my work.
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
2x+3x+4x=180
9x=180
x=20
2x=40
3x=60
4x=80