# Quadrilateral: Square & Rectangle A square has four equal sides and four equal angles (90 degree angles or right angles). A rectangle is a quadrilateral with 4 right angles. It is similar to square except that its sides are not equal.

### Square Perimeter of Square

Perimeter of the square is 4 times the length of the side. For a square of length L, perimeter = 4 * L

Area of Square

Area of square is the square of length of the side. Area = L * L

Properties of Square

1. The diagonals of a square bisect each other and meet at right angles (90 degrees)
2. The diagonals of a square bisect its angles
3. The diagonals of a square are perpendicular
4. Opposite sides of a square are both parallel and equal in length
5. All four angles of a square are equal. (every angle of a square is a right angle)
6. The diagonals of a square are equal.

### Rectangle

A rectangle is a quadrilateral with 4 right angles. It is similar to square except that its sides are not equal. Perimeter of Rectangle

Perimeter of the rectangle is sum of the length of its sides. Perimeter = 2 * (Length + Breadth)

Area of Rectangle

Area of rectangle is multiplication of its length and breadth. Area = Length * Breadth

Properties of Rectangle

1. All angles are right angles (90 degrees)
2. Opposite sides are parallel and equal.
3. Diagonals bisect each other.