Think about commutativity property.

How many sides are there in a rectangle? Are all of them of the same lengths?

Think about the operations.

How many sides are there in a rectangle?Are the length of opposite sides of a rectangle same ?

Think about distributive property.

Use distributive property.

How many sides are there in an octagon? What does regular octagon mean?

In the expression , put the value of a.

In the expression , put the value of p.

How many sides are there in a square? Are all of them of same lengths?