Question

help me
$the \: width \: of \: \: rectangle \: is \: \frac{02}{3} its \: length \: if \: perimeter \: is180m \: find \: dimenssions \: of \: rectangle$

Answer 1

$width \: b = \frac{2}{3} l \\ perimeter \: 2(l + b) = 180m \\ 2(l + \frac{2}{3} l) = 180m \\ 2. \frac{5}{3} l \: = 180 \\ \frac{10}{3} l = 180 \\ l = \frac{180 \times 3}{10} = 54m \\ so \: width \: b = \frac{2}{3} \times 54 = 36m$