Published By-

Param Publication

Triangle
    A triangle is a closed figure made by three line segments. It has three vertices, three sides and three angles.

                                                              

A triangle ABC is given having three vertices A, B, C and three sides AB, BC, CA and three angles are  ABC,  BCA,   CAB.

Classification of triangles:
1.    With respect to angles are:
    (a)     Acute-angled triangles 
    (b)     Obtuse-angled triangles 
    (c)     Right-angled traingles 

(a)     Acute-angled triangles

                                            

A triangle in which measurement of each of the three angles are less than 90°.

(b)     Obtuse-angled triangle :

                               

A triangle in which one angle is obtuse angle i.e. greater than 90° but less then 180°.

(c)     Right-angled triangle:

                                     

A triangle in which one angle is exactly 90°.
        •    The side opposite to the right angle is called the hypotenuse.
        •    The other two sides are called as the legs of the right-angled triangle (or base and perpendicular).
        •    In the given figure AC is the hypotenuse and AB and BC are the legs of  DABC.


 

EDUCARE

Course : CBSE Class 7

Start Date : 26.01.2022

End Date : 03.03.2022

Types of Batch : Live Online Class

Subject M T W T F S S
Mathematics(120 hours) 7:00 PM 7:00 PM 7:00 PM 7:00 PM 7:00 PM - -
Class 7 - ALL Subjects
veda skill training academy

Course : CBSE Class 7

Start Date : 27.01.2022

End Date : 31.03.2022

Types of Batch : Live Online Class

Subject M T W T F S S
Mathematics(30 hours) 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 12:45 PM 12:45 PM
Science(30 hours) 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 12:45 PM