Paula built a play area for her dog in the shape of a regular pentagon. If the perimeter is 35 feet, what is the length of each side of the play area?

35/5 = ?

Perimetre of pentagon=5*t

where t=side lenght
t=perimeter/5=(35/5)=7

t=7

Go to en.wikipedia org
Type pentagon and you will have all about pentagon,including formula for Area.

To find the length of each side of the play area, we need to divide the perimeter of the pentagon by the number of sides, which is 5.

Perimeter = 35 feet
Number of sides = 5

Length of each side = Perimeter / Number of sides
= 35 feet / 5
= 7 feet

Therefore, the length of each side of the play area is 7 feet.