A sphere and a hemisphere have the same radius, then the ratio of their respective total surface areas is:
Answer & explanation
Correct answer: option 4
Sphere : hemisphere
T.S.A. : 4\(\pi \)r2 : 3\(\pi \)r2
4 : 3
A sphere and a hemisphere have the same radius, then the ratio of their respective total surface areas is:
Correct answer: option 4
Sphere : hemisphere
T.S.A. : 4\(\pi \)r2 : 3\(\pi \)r2
4 : 3