SOLUTION: A hollow spherical shel is 2cm thick if its auter radius is 8cm ,then find the volume of metal in the sghere (take radius =3:14)

Question 887415: A hollow spherical shel is 2cm thick if its auter radius is 8cm ,then find the volume of metal in the sghere (take radius =3:14)
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
A hollow spherical shel is 2cm thick if its auter radius is 8cm ,then find the volume of metal in the sghere (take radius =3:14)
.
vol of any sphere = (4/3)(pi)r^3
Outer radius is 8cm
Inner radius is 6cm
.
"vol of metal" = "vol of outer radius sphere" - "vol of inner radius sphere"
[(4/3)(pi)r^3] - [(4/3)(pi)r^3]
[(4/3)(3.14)8^3] - [(4/3)(3.14)6^3]
2143.573 - 904.32
1239.253 cubic cm

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