The first side of a triangle is 9 m shorter than the second side. the third side is 3 times as long as the first side. the perimeter is 39 m. what is the length of the longest side?

Longest side is 18 m

Step-by-step explanation:

1st side : x -9

3rd : 3(x-9)

If perimeter is 39, then, x + (x-9) + 3(x-9) = 39

5x -36 = 39

5x = 75

x = 15

Therefore,

1st side = 6

2nd side = 15

3rd side = 18

c

step-by-step explanation:

exactly you go it

step-by-step explanation: