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Multiple choice

The volume of the hemisphere is 19,404 cm3. The radius of the hemisphere is _______.

  1. 14 cm

  2. 19 cm

  3. 21 cm

  4. 17 cm

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Volume of hemisphere = (2/3)πr³. Given (2/3)πr³ = 19404. Using π = 22/7: r³ = (19404 × 3 × 7)/(2 × 22) = 9261. Therefore r = 21 cm.

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