Question

ajuda na letra B por favorrrrr

Answer 1

Utilizando semelhança de triângulos, calcularemos o valor de x:

$\frac{\overline{BC}}{\overline{AC}} = \frac{\overline{BE}}{\overline{DE}} \implies \frac{(15+12)}{18} = \frac{15}{x} \implies \frac{27}{18} = \frac{15}{x} \implies 27.x=15.18 \implies 27.x = 270\implies x=\frac{270}{27} \implies x = 10$

e depois o valor de y:

$\frac{\overline{AB}}{\overline{AC}} = \frac{\overline{BD}}{\overline{DE}} \implies \frac{36}{18} = \frac{y}{10} \implies \frac{2}{1} = \frac{y}{10} \implies y=2.10 \implies y = 20$

Logo, x=10 e y=20.