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An equilateral triangle circumscribes al...

An equilateral triangle circumscribes all the three circles each of radius 1 cm . What is the perimeter of the equilateral triangle ?

A

`6(sqrt3+1) cm`

B

`sqrt3(8+sqrt2) cm`

C

`15(sqrt3-1) cm`

D

none of these

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The correct Answer is:
A
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