Question

Nas figuras , a // b // c , calcule o valor de x.

Me ajudemmmmmmmmmm​

Answer 1

Explicação passo-a-passo:

Pelo Teorema de Tales:

a)

$\sf \dfrac{x}{4}=\dfrac{3}{2}$

$\sf 2x=4\cdot3$

$\sf 2x=12$

$\sf x=\dfrac{12}{2}$

$\sf x=6$

b)

$\sf \dfrac{x}{9}=\dfrac{14}{12}$

$\sf 12x=9\cdot14$

$\sf 12x=126$

$\sf x=\dfrac{126}{12}$

$\sf x=10,5$