THE TRIANGLE AND ITS

PROPERTIES

MADE BY = Arpit Agrawal

CLASS =7=A

ROLL NUMBER = 33

INTRODUCTION TO TRIANGLE

We know that a close figure formed by three intersecting lines is called a Triangle .

A triangle has three sides and three vertex . For example = in triangle ABC , denoted as ABC AB, BC,CA are three sides A , B , C are three and A,B,C are three angles and ABC are three vertex

CLASSIFICATION OF TRIANGLE BASED ON SIDES Equilateral triangle Isosceles triangle Scalene triangle

Isosceles TriangleEquilateral Triangle Scalene Triangle

DIFFERENT TYPES OF TRIANGLE

Equilateral TriangleAcute TriangleIsosceles Triangle

Right Angle Triangle Scalene Triangle Obtuse Angle

MEDIAN What is a Median ? A median connects a vertex of a triangle

to the mid point of the opposite side , that is called median .

There are 3 median in the triangle .

ALTITUDE What is a Altitude ? This line containing the opposite side is

called the extended base of the altitude.

There are 3 altitude in the triangle .

 

EXTERIOR ANGLE  An exterior angle is formed by one

side of a triangle and the extension of an adjacent side of the triangle.

A exterior angle of a triangle is equal to the sum of its interior opposite angles .

PYTHAGORAS PROPERTY Pythagoras is said to have found the very

important property of right angled triangle called Pythagoras theorem . The property has been named after him as he is believed to have been the first to give a proof of this property .

The theorem started as : In a right angled triangle . The square of the

hypotenuse is equal to the sum of the square of other two sides .

THANK YOU