The total surface area of a solid hemisphere is 16632 cm2 . Its volume is: (Take π=22/7)
Answer & explanation
Correct answer: option 4
We know that,
Total surface area = 3πr2
We have,
TSA of Hemisphere = 16632 cm2
Volume of solid hemisphere = \(\frac{2}{3}\)πr3
So,
= 3 × π × r2 = 16632
= r2 = 5544 × \(\frac{7}{22}\)
= r2 = 1764
= r = 42 cm
Volume = \(\frac{2}{3}\) πr3
= \(\frac{2}{3}\) × \(\frac{22}{7}\) × 423
= 155232 cm3