A cylindrical tank has radius \(7\text{ cm}\) and height \(10\text{ cm}\). Find its volume. \(\left(\pi=\frac{22}{7}\right)\)
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Correct Answer: Option B
Explanation:
Volume of a cylinder: \[<br/>V=\pi r^2 h<br/>\] Substitute the values. \[<br/>V=\frac{22}{7}\times7^2\times10<br/>\] \[<br/>=\frac{22}{7}\times49\times10<br/>\] \[<br/>=22\times7\times10<br/>\] \[<br/>=1540<br/>\] Therefore: \[<br/>1540\text{ cm}^3<br/>\]
Volume of a cylinder: \[<br/>V=\pi r^2 h<br/>\] Substitute the values. \[<br/>V=\frac{22}{7}\times7^2\times10<br/>\] \[<br/>=\frac{22}{7}\times49\times10<br/>\] \[<br/>=22\times7\times10<br/>\] \[<br/>=1540<br/>\] Therefore: \[<br/>1540\text{ cm}^3<br/>\]