Question

A square has a perimeter of 39.6 millimeters. What is the length of each side?​

Answer 1

Answer:

9.9 mm

Step-by-step explanation:

let $x$ = length of one edge of the square

perimeter of a square = 4$x$

⇒ 39.6 = 4$x$

⇒ $x$ = 39.6 ÷ 4 = 9.9 mm

Answer 2

Answer:

9.9 millimeters

Step-by-step explanation:

To find the perimeter of a square,

Equation: 4 • length = P

So in this case, we're just working backwards. To find the length, divide.

39.6/4 = 9.9