what is the volume of hemisphere when a sphere is 64 cm³ is melted
Answers
(b) Curved surface area of hemisphere = 2πr2. (c) Total ... The radius of a sphere is 2r, then its volume will be. (A). 3. 4 ... (C) 64 cm3 ... It is melted and recast.
Given :- what is the volume of hemisphere when a sphere is 64 cm³ is melted ?
Solution :-
we know that, when a solid is melted and recast into another solid ,
- They volume remains same .
- Volume of sphere = (4/3) * π * (radius)³
- Volume of hemisphere = (2/3) * π * (radius)³
so,
→ Volume of hemisphere = Volume of sphere
→ Volume of hemisphere = 64 cm³ (Ans.)
Therefore, Volume of hemisphere is same as volume of sphere which is 64 cm³ .
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