Question

Sabendo que as retas r, s, t, u são paralelas, calcule o valor de x e y :

Answer 1

Resposta:

4/2= 10/x

2/1=10/x

2x=10

x= 10:2

x= 5

10/5= 12/y

2/1=12/y

2y=12

y= 12:2

y= 6

Answer 2

Explicação passo-a-passo:

Pelo Teorema de Tales:

=> Valor de x

$\sf \dfrac{x}{2}=\dfrac{10}{4}$

$\sf 4x=2\cdot10$

$\sf 4x=20$

$\sf x=\dfrac{20}{4}$

$\sf \red{x=5}$

=> Valor de y

$\sf \dfrac{y}{2}=\dfrac{12}{4}$

$\sf 4y=2\cdot12$

$\sf 4y=24$

$\sf y=\dfrac{24}{4}$

$\sf \red{y=6}$