Find the volume of a cylinder of radius $7$ cm and height $10$ cm. Use $\pi=\dfrac{22}{7}$.

Find the volume of a cylinder of radius $7$ cm and height $10$ cm. Use $\pi=\dfrac{22}{7}$.
  1. $220 \text{ cm}^{3}$
  2. $1540 \text{ cm}^{3}$
  3. $440 \text{ cm}^{3}$
  4. $308 \text{ cm}^{3}$

Solution

$V = \pi r^{2} h = \dfrac{22}{7} \times 49 \times 10 = 22 \times 7 \times 10 = 1540 \text{ cm}^{3}$.

Asked in: IMO

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