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Australian AMC 2023 - Senior Question 9

AMC AUSTRALIA · Australian AMC 2023 - Senior

Question 9

The volume $V$ of a sphere of radius $r$ is given by $V=\frac43\pi r^3$. For a sphere of volume $V=100\text{ cm}^3$, which of the following is closest to the radius?
  1. 2.9 cm
  2. 3.5 cm
  3. 5 cm
  4. 5.8 cm
  5. 10 cm