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