Respuesta :
i think i got it side A is 6.8 side B is 8.8 then side C is 26.4 hope this is right
The length of three sides of triangle is,
[tex]a=6.8m\\\\b=8.8m\\\\c=26.4m[/tex]
Perimeter of triangle :
Perimeter is the sum of all three sides of triangle.
Let us consider that side b of triangle is x.
Given that, Side (a) is two less than side (b) and side (c) is triple side (b).
So that, sides of triangle are,
[tex]a=x-2\\\\b=x\\\\c=3x[/tex]
Perimeter of triangle are,
[tex]x-2+x+3x=42\\\\5x=44\\\\x=44/5=8.8[/tex]
Side [tex]a=8.8-2=6.8m,b=x=8.8m,c=3x=3*8.8=26.4m[/tex]
Learn more about the perimeter here:
https://brainly.com/question/19819849