The ratio of whole surface area of solid and solid hemisphere is______

1.	The ratio of whole surface area of solid and solid hemisphere is_______
Answer» TSA of sphere =(4πr^2)TSA of hemisphere =(3πr^2)TSA of sphere / TSA of hemisphere\xa0= (4πr^2)/(3πr^2)=4:3\xa0the ratio is 4:3.

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