the volume of a solid hemisphere is 718 2/3 cm^3. find its total surface area
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please answer quickly
Is volume 718×(2/3) or 718 whole2/3
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volume of sphere = 4/3πr³
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heya....!!!!?
volume of sphere = 718⅔cm³.
2/3πr³ = (2156)/3
= > 2×22/7×r³ = 2156×3/3
=> r³ = (2156×7)/(2×22)
=> r³ = 7×49
=> r³ = 7 × 7 × 7
=> r = 7cm
total surface area = 4πr²
=> 4×22/7×7²
=> 4×22×7
=> 616cm²
volume of sphere = 718⅔cm³.
2/3πr³ = (2156)/3
= > 2×22/7×r³ = 2156×3/3
=> r³ = (2156×7)/(2×22)
=> r³ = 7×49
=> r³ = 7 × 7 × 7
=> r = 7cm
total surface area = 4πr²
=> 4×22/7×7²
=> 4×22×7
=> 616cm²
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