** Definition of Rhombus**

- Rhombus is a parallelogram with four equal sides.

**More about Rhombus**

- Diagonals of a rhombus bisect each other at right angles.
- Diagonals of a rhombus bisect opposite angles.
- Area of a rhombus (A) with side length
*l*and perpendicular distance*h*between opposite sides is given as A =*lh*. - Area of rhombus with the diagonals
*d*_{1}and*d*_{2}=*d*_{1}*d*_{2}. - Square is a special case of rhombus.

**Example of Rhombus**

- The given figure represents a rhombus.

**Solved Example on Rhombus**

ABCD is a rhombus. Find the area of ABCD, if AC = 3 in. and BD = 4 in.

Choices:

A. 9 in.2

B. 6 in.2

C. 7 in.2

D. 8 in.2

Correct Answer: B

Solution:

Step 1:Area of rhombus = × product of diagonals.

Step 2:AC = 3 in. and BD = 4 in. [Given.]

Step 3:Area of ABCD = × AC × BD

Step 4:= × 3 × 4

Step 5:= = 6 [Substitute AC = 3 and BD = 4.]

Step 6:The area of ABCD = 6 in.2

**Related Terms for Rhombus**

- Angle
- Equal
- parallel
- Parallelogram
- Quadrilateral
- Side