Question

If the total surface area of a solid hemisphere is 462 cm, find its
volume.
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Answer 1

Step-by-step explanation:

Total surface area of the hemisphere = 462cm²

Total surface area of the hemisphere =2πr²

$⇒462=3πr </p><p>2$

$⇒r \: =7 cm$

$Volume \: of \: hemisphere = </p><p>3</p><p>2</p><p> </p><p> πr </p><p>3$

$v \: = \: \frac{2}{3} \times \frac{22}{7} \: \times 7 {}^{3}$

$v \: = 718.67cm {}^{3}$