Multiple choice

The volume of a cylinder is $330$ cm$^3$. If the length of the cylinder is $4$ cm, calculate the radius of the cross section. $(\pi = 3.142)$

  1. $5.12 cm$
  2. $7.12 cm$
  3. $4.12 cm$

  4. None of these
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A Correct answer
Explanation

The volume of a cylinder is given by V = pi * r^2 * h. Substituting the given values: 330 = 3.142 * r^2 * 4. Solving for r^2 gives 330 / 12.568 = 26.257, and taking the square root gives approximately 5.12 cm.

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