Find the odd statement out in relation to a triangle ........

Quantitative Aptitude (RRB NTPC) Mensuration 2D

Find the odd statement out in relation to a triangle.

The longest side is opposite to the greatest angle.

The exterior angle of a triangle = the sum of interior opposite angles.

The sum of any two sides is greater than the 3rd side

The square of one side = the sum of the squares of other two sides

In a triangle,

The longest side is opposite to the greatest angle.

The exterior angle of a triangle = the sum of interior opposite angles.

The sum of any two sides is greater than the 3rd side.

All of these are the basic properties of a triangle.

But in option 4

The square of one side = the sum of the squares of other two sides

The above statement is only true for right angled triangle.

Hence the answer is option 4

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