**What is a Quadrilateral?**Any figure that has four sides can be termed as a quadrilateral. There can be many forms of quadrilateral, such as, rhombus, square, rectangle, trapezium, parallelogram etc. Types of quadrilateral and their properties:

**1. Square**

- All sides are equal and spread at an angle of 90
^{o}. While, its opposite sides are parallel to one another. - The diagonals of a square are equal and bisect one another at an angle of 90Â

**2. Rectangle**

- The opposite sides of a rectangle are parallel and equal.
- All sides are spread at an angle of 90
^{o} - The diagonals are equal in length.
- The diagonals of a rectangle bisect each other at 90
^{o}. - A rectangle is a special type of parallelogram whose all sides are spread at an angle of 90
^{o}.

**3. Parallelogram**

- The diagonals of a parallelogram bisect one another.
- Opposite sides of a parallelogram are equal and parallel.
- In a parallelogram, opposite angles are equal.
- The sum of adjacent angle is equal to 180
^{o}.

**4. Rhombus**

- All sides of a rhombus are equal.
- Only the opposite angles are equal.
- The sum of adjacent angles is supplementary
- The diagonals bisect one another at complementary angle.

**5. Kite**

- The adjacent sides of a kite are equal in length
- The diagonals bisect one another at complementary angle.
- OX = OY (Where O is the point of intersection)

**6. Trapezoid**

- Trapezoid is a four sided figure which has only one pair of parallel sides
- The sum of adjacent sides is equal to 180
^{o}.

**Question:**Calculate the area of the parallelogram:

**Solution:**Area \; of \; parallelogram \; = \; base \times height Here, height = 8 cm and base = 23 cm So, Area = \; 8 \times 23 = 184 \; cm^{2} We’ll be glad to help you in your GMAT preparation journey. You can ask for any assistance related to GMAT and MBA from us by calling us at

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