In a triangle ABC, if (a+b+c)(a+b-c)(b+c...

In a triangle ABC, if `(a+b+c)(a+b-c)(b+c-a)(c+a-b)=(8a^2b^2c^2)/(a^2+b^2+c^2)` then the triangle is

A

isosceles

B

right angled

C

equilateral

D

obtuse angled

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The correct Answer is:

A, B, C, D

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