Question #6d9c2

1 Answer
radee
Nov 5, 2016

#v = 36 pi r^3# or #v = 113.097 r^3#

Explanation:

The volume of a sphere is computed using this formula

#v = 4/3 pi r^3#

such that:
#v# = volume
#r# = radius of the sphere

In this case, since you have a sphere with #radius = 3r# then you would need to substitute the given radius of the sphere to the value of #r# in the formula.

#v = 4/3 pi r^3#
#v = 4/3 pi (3r)^3#
#v = 4/3 pi (27r^3)#
#v = 36 pi r^3#
#v = 113.097 r^3#

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