Multiple choice The volume of the hemisphere is 19,404 cm3. The radius of the hemisphere is _______. 14 cm 19 cm 21 cm 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.