Three circles of radius a, b and c touch each other externally. The area of the triangle formed by

joining their centr

Three circles of radius a, b and c touch each other externally. The area of the triangle formed by

joining their centres is :

(A)√(a+b+c)abc

(B)(a+b+c)√ab+bc+ca

(C)ab+bc+ca
(D)None of these​

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