Question

Nas figuras determine os valores desconhecidos .

Answer 1

$\frac{x}{3} = \frac{12}{9} \\ 9x = 36 \\ x = \frac{36}{9} \\ x = 4$

$\frac{y}{9} = \frac{5}{3} \\ 3y = 45 \\ y = \frac{45}{3} \\ y = 15$