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The diameter of a sphere is 12 cm. Calculate, correct of the nearest cm\(^3\), the...

Mathematics
WAEC 2020

The diameter of a sphere is 12 cm. Calculate, correct of the nearest cm\(^3\), the volume of the sphere, [Take \(\pi = \frac{22}{7}\)]

  • A. 903 cm\(^3\)
  • B. 904 cm\(^3\)
  • C. 905 cm\(^3\)
  • D. 906 cm\(^3\)
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Correct Answer: Option C
Explanation

Volume of sphere = \(\frac{4}{3}\)\(\pi\)r\(^3\)

diameter = 12cm ⇒ r = 6cm

V. of sphere =  \(\frac{4}{3}\) x  \(\frac{22}{7}\) x 6\(^3\) \(\approxeq\) 905cm\(^3\)


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