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svetoff [14.1K]
3 years ago
12

Can someone help me pls

Mathematics
1 answer:
zysi [14]3 years ago
4 0

Answer:

9

Step-by-step explanation:

V=πr²h

2797.74=πr²11

2797.74÷11π=r²

81=r²

√81=r

9=r

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