Answer:
x = 4, y = 2
Step-by-step explanation:
Given quadrilateral is a parallelogram. Diagonals of a parallelogram bisects each other.
[tex] \therefore \: 3x = 12 \\ \therefore \: x = \frac{12}{3} \\ \huge \red{ \boxed{\therefore \: x =4}} \\ \\ \therefore \: 4y = 8 \\ \therefore \: y = \frac{8}{4} \\ \huge \purple{ \boxed{\therefore \: y =2}} \\ [/tex]
