**1. Rhombus**

If a parallelogram has all the four sides equal then it is called a **Rhombus**.

Here, AB = BC = CD = AD.

**Properties of a Rhombus**

- A rhombus has all the properties of a parallelogram and a kite.
- The special property is that its diagonals are perpendicular bisector to each other.

Hence, AE = EC and DE = EB.

It makes an angle of 90° at the point of intersection of the diagonals.

**2. Rectangle**

A parallelogram with equal angles and equal opposite sides is called **Rectangle**.

Here, AB = DC and AD = BC.

**Properties of a Rectangle**

- Opposite sides are parallel and equal.
- Opposite angles are equal.
- Adjacent angles make a pair of supplementary angles.
- Diagonals are of equal length.
- Diagonals bisect each other.
- All the four angles are of 90°.

**3. Square**

A rectangle with all the four equal sides is called a **Square**.

Here, AB = BC = CD = AD.

**Properties of a Square**

- All four sides are equal.
- Opposite sides are parallel.
- Diagonals are of equal length.
- Diagonals are perpendicular bisector to each other.
- All the four angles are of 90°.

Login

Accessing this course requires a login. Please enter your credentials below!