The radius as well as the height of a circular cone increases by $10 \%$. The percentage increase in its volume is____________

(A) 17.1

(B) 21.0

(C) 33.1

(D) 72.8

The radius as well as the height of a circular cone increases by $10 \%$. The percentage increase in its volume is____________

(A) 17.1

(B) 21.0

(C) 33.1

(D) 72.8

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