the difference between the total surface are and the curved surface are of a hemisphere is 154cmsq find its volume
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Answered by
0
Answer:
volume of hemisphere is 718.66cm³
Step-by-step explanation:
TSA - CSA = 154cmsq.
3πr² - 2πr² = 154
πr² (3-2) = 154
πr² = 154
r² = 154 × 7 / 22
r² = 49
r = √49
r = 7 cms.
volume of = 2/3 πr³.
hemisphere
= 2/3 × 22/7 × 7 × 7 × 7.
= 15092/21
= 718.66 cm³
therefore, volume of hemisphere is 718.66 cm³
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Answered by
0
Answer:
TSA - CSA = 154 cmsq
3πr² - 2πr² = 154
πr² = 154
r² = 154 × 7/22
r² = 77 × 7/11
r² = 7×7
r = 7 cm
Volume = 2/3πr³
= 2/3 × 22/7× 7×7
=2/3× 22× 49
=44/3 × 49
= 2156/3
= 618.67 cm³
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