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Byju's Answer
Standard IX
Mathematics
Volume of a sphere
The ratio of ...
Question
The ratio of the total surface area of a solid sphere and a solid hemisphere is ______.
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Solution
TSA of solid sphere
=
4
π
r
2
TSA of hemi-sphere
=
2
π
r
2
+
π
r
2
=
3
π
r
2
Required ratio
=
4
π
r
2
:
3
π
r
2
=
4
:
3
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