find the volume of a sphere whose surface area is 55.44 cm ^2
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Answered by
49
surface area of sphere=4*pi*r^2----(1)
given surface area=55.44cm^2----(2)
(1)=(2)
4*pi*r^2= 55.44
r^2=(55.44*7)/(4*22)
after cancellation
r^2= (2.1)^2
r=2.1 cm
Volume =4/3*pi*r^3
=4/3*22/7*2.1*2.1*2.1
=38.808 cm^3
given surface area=55.44cm^2----(2)
(1)=(2)
4*pi*r^2= 55.44
r^2=(55.44*7)/(4*22)
after cancellation
r^2= (2.1)^2
r=2.1 cm
Volume =4/3*pi*r^3
=4/3*22/7*2.1*2.1*2.1
=38.808 cm^3
Answered by
10
volume of sphere = 38.808cm cube
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