Types of quadrilaterals are discussed here:

1. Parallelogram:

A quadrilateral whose opposite sides are parallel and equal is called a parallelogram. Its opposite angles are equal.

Here LMNO is a parallelogram.

(i) LM is parallel to ON.

LO is parallel to MN.

(ii) LO = MN

LM = ON

(iii) ∠L = ∠N

∠M = ∠O

2. Rectangle:

A rectangle is a parallelogram in which all the angles are right angles.

Here ABCD is a rectangle.

(i) So, AB is parallel to DC.

AB = DC

(iii) ∠A = ∠B = ∠C = ∠D = 90°

3. Square:

A square is a rectangle in which all sides are equal.

Here ABCD is a square.

(i) AB is parallel to DC.

(ii) AB = BC = CD = DA.

(iii) ∠A = ∠B = ∠C = ∠D = 90°

4. Rhombus:

A rhombus is a parallelogram whose all sides are equal, opposite sides are parallel and opposite angles are equal.

Here LMNO is a rhombus.

(i) LM = MN = NO = OL

(ii) ∠L = ∠N

∠O = ∠M

(iii) LM is parallel to ON

OL is parallel to MN

5. Trapezium:

A quadrilateral is called trapezium if a pair of its opposite sides are parallel.

Here ABCD is a trapezium.

AB is parallel to DC

If a trapezium has non parallel sides equal, it is called isosceles trapezium.

Let’s discuss about the properties of types of quadrilateral in the table below;

Comparing the sides and angles of the different quadrilateral are discussed above.

Parallel Lines.

Perpendicular Lines.

Construction of Perpendicular Lines by using a Protractor.

Sum of Angles of a Quadrilateral.

Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.

Recent Articles

1. Roman Numerals | System of Numbers | Symbol of Roman Numerals |Numbers

Feb 22, 24 04:21 PM

How to read and write roman numerals? Hundreds of year ago, the Romans had a system of numbers which had only seven symbols. Each symbol had a different value and there was no symbol for 0. The symbol…

2. Worksheet on Roman Numerals |Roman Numerals|Symbols for Roman Numerals

Feb 22, 24 04:15 PM

Practice the worksheet on roman numerals or numbers. This sheet will encourage the students to practice about the symbols for roman numerals and their values. Write the number for the following: (a) V…

3. Roman Symbols | What are Roman Numbers? | Roman Numeration System

Feb 22, 24 02:30 PM

Do we know from where Roman symbols came? In Rome, people wanted to use their own symbols to express various numbers. These symbols, used by Romans, are known as Roman symbols, Romans used only seven…

4. Place Value | Place, Place Value and Face Value | Grouping the Digits

Feb 19, 24 11:57 PM

The place value of a digit in a number is the value it holds to be at the place in the number. We know about the place value and face value of a digit and we will learn about it in details. We know th…