Question

. Find the perimeter of a regular pentagon with each side measuring 4.5 inches.

Answer 1

Answer: 22.5 inches

Step-by-step explanation:

• the general formula for finding perimeter is $p=s+s+s...$
• a pentagon contains 5 sides

$p=s+s+s+s+s$

• note that this is a regular pentagon so it must contain 5 congruent sides
• each side will be 4.5 inches
• the formula can be changed to $5(s)$ and solved:

$5(4.5 in)=p$

∴ 22.5 inches = perimeter of the pentagon