The volume of a hemisphere is 2425/12 cm³. Find its curved surface area. [Use π=22/7]

Volume of hemisphere=2/3πr³
⇒2425/12=2/3πr³
485/12=2/3×22/7r³
r³=485/12×3×7/22
r³=441
∴r=7/2 cm
Curved Surface Area=2πr²=2×22/7×7/2×7/2=77cm²