Answer:
The side of the patio is 14.75 feet.
Explanation:
A square patio has an area of 218 square feet.
As it is a square that means all the sides must be equal.
And area of a square is given by = side x side
Here, lets say the side of the patio be x.
This means

=>

=>

=> x = 14.75
So, the side of the patio is 14.75 feet.