Callan is buying a square shaped platter with an area of 169 square inches what is the correct step he should take if he wants to find the side length of the platter

a = length of one side.

Area of a square = a^2

in our problem,

Area = 169 square inches

a = ?

Plug our numbers into the area formula mentioned above.

169 in^2 = a^2.

Take the square root of each side to find the side length of the square shaped platter.

13 = a