Question

Alguém me ajuda a resolver esse teorema de tales, por favor.​

Answer 1

$\frac{x+y}{2+5} = \frac{x}{2} = \frac{y}{5} \\\\\frac{21}{7} = \frac{x}{2} = \frac{y}{5}\\\\3 = \frac{x}{2} = \frac{y}{5}\\\\3 = \frac{x}{2} \rightarrow x = 6\\\\3 = \frac{y}{5} \rightarrow y = 15$