# SOLUTION: use an algebraic equation to solve: the sides of a triangle are in the ratio 3:4:5. what is the length of each side if the perimeter is 30cm?

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 Click here to see ALL problems on Triangles Question 548744: use an algebraic equation to solve: the sides of a triangle are in the ratio 3:4:5. what is the length of each side if the perimeter is 30cm?Answer by ankor@dixie-net.com(15656)   (Show Source): You can put this solution on YOUR website!he sides of a triangle are in the ratio 3:4:5. what is the length of each side if the perimeter is 30cm? : let x = the multiplier then 3x + 4x + 5x = 30 12x = 30 x = 30/12 x = 2.5 if the multiplier, therefore the three sides are: 3*2.5 = 7.5 4*2.5 = 10 5*2.5 = 12.5