The volume of a hemi-sphere is 
. Find its curved surface area. 
Volume of hemi-sphere 
⇒ r = 10.5 cm
Curved surface area
= 693 cm2
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The volume of a hemi-sphere is . Find its curved surface area.
Volume of hemi-sphere
⇒ r = 10.5 cm
Curved surface area
= 693 cm2