hannah322
hannah322 hannah322
  • 24-01-2017
  • Mathematics
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Please help!!!
The volume of a sphere is 2,400 cubic centimeters.what is the approximate diameter of this sphere

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apologiabiology
apologiabiology apologiabiology
  • 24-01-2017
Vsphere=(4/3)pi(r)³

remember that d/2=r, so 2r=d

given
V=2400

2400=(4/3)pi(r)³
times both sides by (3/4)
1800=pi(r)³
divide both sides by pi
1800/pi=r³
cube root both sides
8.30566118415=r
times 2
16.6113223683=r
the aproximate diameter isi 16.6 cm
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