Squares

• Square is a shape with 4 equal sides and every interior angle is a right angle (90°)
• A square is also a quadrilateral, parallelogram and fits the definiton of rectangle and rhombus.

Length

Area

Diagonal

Perimeter

Area

The area for a square is the length of a side, squared :-

• Area = length² = length x length

It is also half the diagonal squared :-

• Area = diagonal² / 2

Or :-

• Area = (perimiter / 4)²

Length

• Length = √area

• Length = diagonal / √2

Perimeter

• Perimeter = length x 4

• Perimiter = √area x 4

Diagonal

• Diagonal = length x √2