Respuesta :

The volume of a sphere is V=4/3*pi*r^3

Since pi=3.14 and r=20, we have:

V=4/3*3.14*20^3

V=4/3*3.14*8000

V=4/3*25120

V=33493.33333

So the volume is about 33493 1/3 mm^3

Hope this helped!

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