Question

pls help me in this question with proper solution
(only 2 part of this question) ​

Answer 1

Answer:

552.....................

Step-by-step explanation:

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Answer 2

Answer:

$154cm^3$

Step-by-step explanation:

$\frac{1}{3}\pi r^2h\\\\= \frac{1}{3} \times \frac{22}{7} \times 3.5^{2} \times 12\\\\ = 154cm^3$