Write four different expressions for the perimeter of a pentagon whose sides are all s-2 units long

Answer: The answers are given below.

Step-by-step explanation: Given that all the sides of a pentagon are (s-2) units long. This clearly tells us that the pentagon is a regular one with each side equal to (s-2) units.

We are to write the perimeter of the pentagon in four different expressions.

Let 'P' represents the perimeter of the pentagon.

Since it is a regular pentagon, we can write the perimeter in following four expressions.

P = (s-2) + (s-2) + (s-2) + (s-2) + (s-2),

= 5 * (s-2),

= 5s - 10,

= 5s - 5*2.

Thus, these are the four expressions for the perimeter of the pentagon.