Three identical cones with base radius \( \mathrm{r} \) are placed on their bases so that each i...

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Three identical cones with base radius \( \mathrm{r} \) are placed on their bases so that each is touching the other two. The radius of the circle drawn through their vertices is
a. Smaller than \( r \)
b. equal to \( r \)
c. larger than \( r \)
d. None of these
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