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A spherical ball hss a diameter of 45cm. Workout the volume of the ball

 Jul 17, 2014

Best Answer 

 #1
avatar+3450 
+5

Well, the formula to find the volume of a sphere is  V = ⁴⁄₃(pi)*r3

The radius would be half of the diameter, so radius = 45/2 = 22.5

Now we have

V = 4/3(pi)*22.53

V=4/3(pi)*11390.625

v = 4/3*11390.625*(pi)

V = 15187.5(pi)

$${\mathtt{15\,187.5}}{cm}{\mathtt{\,\times\,}}{\mathtt{\pi}} = {\mathtt{47\,712.938\: \!426\: \!394\: \!984\: \!809\: \!2}}{cm}$$

Or, rounded to the nearest whole number:

47,713 cm3

 Jul 17, 2014
 #1
avatar+3450 
+5
Best Answer

Well, the formula to find the volume of a sphere is  V = ⁴⁄₃(pi)*r3

The radius would be half of the diameter, so radius = 45/2 = 22.5

Now we have

V = 4/3(pi)*22.53

V=4/3(pi)*11390.625

v = 4/3*11390.625*(pi)

V = 15187.5(pi)

$${\mathtt{15\,187.5}}{cm}{\mathtt{\,\times\,}}{\mathtt{\pi}} = {\mathtt{47\,712.938\: \!426\: \!394\: \!984\: \!809\: \!2}}{cm}$$

Or, rounded to the nearest whole number:

47,713 cm3

NinjaDevo Jul 17, 2014

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