Question

me ajudem pfvvv nessa quest​

Answer 1

$\frac{x}{x + 6} = \frac{3}{6} \\ \\ \frac{x}{x + 6} = \frac{1}{2} \\ \\ 2x = x + 6 \\ x = 6$

$ab = x + x + 6 = 6 + 6 + 6 = 18 \: cm$