Types of Quadrilaterals



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.

AD is parallel to BC.

(ii) AD = BC

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.

BC is parallel to AD.

(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;

Types of Quadrilaterals


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

● Quadrilaterals.

Elements of a Quadrilateral.

Types of Quadrilaterals.

Parallel Lines.

Perpendicular Lines.

Construction of Perpendicular Lines by using a Protractor.

Sum of Angles of a Quadrilateral.

Worksheet on Quadrilateral.

Practice Test on Quadrilaterals.






5th Grade Geometry Page

5th Grade Math Problems

From Types of Quadrilaterals to HOME PAGE


New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.



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.