Question

teorema de Tales me ajudem pff​

Answer 1

Resposta:

Explicação passo-a-passo:

B)

$\frac{2}{4}= \frac{3}{x}\\\\2x=4*3\\2x=12\\\\x=\frac{12}{6} = x=6$

c)

$\frac{4}{12}= \frac{x}{21}\\\\12x= 21*4\\12x= 84\\\\x= \frac{84}{12}\\\\x= 7$