Question

Questão 5: Resolva usando o Teorema de Tales. Nas figuras, a//b//c. calcule x

Answer 1

Resposta:

a) $\frac{2}{4}$ . $\frac{3}{x}$ = 2x = 12

x = 6

b) $\frac{4}{12}$ . $\frac{x}{21}$= 12x = 84

x = 7

c) $\frac{x}{9}$ . $\frac{8}{12}$= 12x = 72

x= 6

d) $\frac{x}{14}$ . $\frac{9}{12}$ = 12x = 126

x = 10,5