Problem :

Diagram of a Polygon

What is the perimeter of this polygon?

21

Problem :

Diagram of a Polygon

What is the perimeter of this polygon?

28

Problem :

Diagram of a Rectangle

What is the perimeter of this rectangle?

22

Problem :

Diagram of a Rectangle

What is the perimeter of this rectangle?

18

Problem :

Diagram of a Square

What is the perimeter of this square?

28

Problem :

Diagram of a Square

What is the perimeter of this square?

12