Notes and Formulas for Square Calculations:

A square is a special case of the rectangle where the length is equal to the width. All 4 sides, designated s, are of equal length. If only the side, area or perimeter of a square is known, you can calculate the other 2 unknowns.

Formulas and Calculations for a square:

• a = s^2
• s = √a
• p = 4*s
• s = p/4

Given the length of a side find the area and perimeter

• s is known; find a and p
• a = s^2
• p = 4*s

Given the area find the length of the sides and the perimeter

• a is known; find s and p
• s = √a
• p = 4*s

Given the perimeter find the length of the sides and the area

• p is known; find s and a
• s = p/4
• a = s^2