An Important Question of M.L Aggarwal book of class 10 Based on Mensuration Chapter for ICSE BOARD.
You have to find the volume of a sphere whose surface area is given.
This is the Question Number 12, Exercise 17.3 of M.L Aggarwal.
Deepak BoraNewbie
Find the volume of a sphere whose surface area is 154 cm square.
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Given surface area of the sphere = 154 cm2
4r2 = 154
4×(22/7)×r2 = 154
r2 = (154×7)/(4×22)
r2 = 49/4
r = 7/2
Volume of the sphere = (4/3)r3
= (4/3)×(22/7)×(7/2)3
= 539/3
= 179.666
= 179.67 cm3 (approx)
Hence the volume of the sphere is 179.67 cm3