Question

The perimeter of triangle ABC is 54. The triangle has side lengths AB=3x, BC=4x, and AC= 5x. Find the length of each side.

Answer 1

54 = 5x+4x+3x

54= 12x

x= 54/12

x=4.5

AB= 3(4.5)
= 13.5

BC= 4(4.5)
= 18

AC= 5(4.5)
= 22.5

Hope I helped :)