Respuesta :
The pentagon does not belong because it has 5 sides while the other 3 shapes have only 4 sides.
Answer:
The pentagon
Step-by-step explanation:
It is the only shape out of the four that is not a quadrilateral. While every other choice has four sides, the pentagon has five.
An argument could also be made for the gray square. It is the only one that is not colored white on the inside.