Length of the sides of a triangle are a b and...

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Examveda

Length of the sides of a triangle are a, b and c respectively. If a² + b² + c² = ab + bc + ca then the triangle is

A. isosceles

B. equilateral

C. scalene

D. right-angled

Answer: Option B

a² + b² + c² = ab + bc + ca
This is true only when a = b = c
So, triangle will be equilateral.

This Question Belongs to Arithmetic Ability >> Geometry

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