Question

Calcule o valor de X:

Answer 1

$\triangle \: ABC \sim \: \triangle \: MNC$

$\dfrac{x}{6} = \dfrac{10 \div 5}{15 \div 5} \\ \frac{x}{\cancel6} = \frac{2}{\cancel3} \\ \dfrac{x}{2} = 2$

$\boxed{\boxed{\mathsf{x=2.2=4}}}$