Important Properties Of Triangles for SSC CGL

Important Properties Of Triangles for SSC CGL

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a,b,c are lengths of triangle

1. Sum of any two sides of a triangle is always greater than the 3rd side.

a+b>c
c+a>b
b+c>a

2. The difference of any two sides of triangle is always less than 3rd side.

a-b<c
b-c<a
c-a<b

3.sum of two sides greater than 3rd side, difference of two sides less than 3rd side.

  Sum of two sides > third side > Difference of two sides


4. Greater angle has greater side to it opposite and smaller Angel has smaller side opposite to it.


5. Sum of internal angle of a triangle is 180 degrees.

6. Sum of external angle of a triangle is 360 degrees.







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