SOLUTION: im stuck on a geometry problem, the problem says "find the value of the variable." then right below it shows a triangle with the angles, "3x degrees, 4x degrees, and 5x degrees."

Algebra ->  Triangles -> SOLUTION: im stuck on a geometry problem, the problem says "find the value of the variable." then right below it shows a triangle with the angles, "3x degrees, 4x degrees, and 5x degrees."       Log On


   

Question 380297: im stuck on a geometry problem, the problem says "find the value of the variable."
then right below it shows a triangle with the angles, "3x degrees, 4x degrees, and 5x degrees." i really need help on this problem, please..
Answer by CharlesG2(834) About Me  (Show Source):
You can put this solution on YOUR website!
"im stuck on a geometry problem, the problem says "find the value of the variable."
then right below it shows a triangle with the angles, "3x degrees, 4x degrees, and 5x degrees." i really need help on this problem, please.."

triangles have angles that add up to 180 degrees
if the angles are 3x, 4x, and 5x then:
3x + 4x + 5x = 180
12x = 180
x = 15
the angles are 45 and 60 and 75