Square
Square
A 2D shape bounded by four equal line segments forming four 90-degree internal angles.
Properties
  1. It is 2D counterpart of a cube.
  2. Vertex: A corner of the square. A square has 4 vertices.
  3. Diagonal: A line segment joining two opposite vertices of the square.
  4. A square has 4 sides and 4 vertices.
  5. It has 2 equal diagonals which are perpendicular bisectors of each other.
  6. Every square is a rectangle.
Area of Square (A)
A = a2
a: length of one side of the square
Perimeter of Square (P)
P = 4a
Diagonal of Square (d)
d = 2 a
Angles of Square
∠A = ∠B = ∠C = ∠D = 90°
Sum of Angles of Square
∠A + ∠B + ∠C + ∠D = 360°