If the total surface area of a solid hemisphere is 462cm sq find its volume
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If the total surface area of a solid hemisphere is 462cm sq find its volume.
TSA = 462 cm²
3π r² = 462
3 × 22/7 × r² = 462
r² = 462×7/3×22
r² = 49
r = 7 cm.
volume of hemisphere = 2/3 π r³
= 2/3×22/7×7³
= 2/3×22/7×7×7×7
= 44×49/ 3 = 718.64 cm³
thanks
TSA = 462 cm²
3π r² = 462
3 × 22/7 × r² = 462
r² = 462×7/3×22
r² = 49
r = 7 cm.
volume of hemisphere = 2/3 π r³
= 2/3×22/7×7³
= 2/3×22/7×7×7×7
= 44×49/ 3 = 718.64 cm³
thanks
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