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Step-by-step explanation:
Let the radius of the base of the right circular cone be r cm
h= 9 cm, volume=48π cm
=> 1/3πr^2 h= 48π
=>1/3r^2h= 48
=>1/3×r^2×9=48
=>r^2=48×3/9
=>r^2=16
=> r=√16=4cm
=>2r=2(4)=8 cm(Ans)
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