The first to find the length of each side, we have to find the value of x :
[tex](4x) + (7x + 2) + (7x+8) = 154[/tex]
[tex]4x + 7x + 7x + 2+8 = 154[/tex]
[tex]18x +10 = 154[/tex]
[tex]18x = 154 - 10[/tex]
[tex]18x = 144[/tex]
[tex]x = \frac{144}{18} [/tex]
[tex]\boxed{x=8}[/tex]
Solution First side :
[tex](4x)m = (4 \cdot 8)m = 32\ m[/tex]
Solution Second Side :
[tex](7x+2)m = (7(8)+2)m = 58\ m[/tex]
Solution Third Side :
[tex](7x+8)m = (7(8)+8)m = 64\ m[/tex]
