Name__________________________

 


                                                              VOLUME OF A SPHERE #3-KEY

 


Directions:  Find the volume of each sphere below.  The formula to calculate the volume of a sphere is

 , where r stands for the radius.  Leave your answers in terms of  and round answers to the

nearest tenth.  Don’t forget, the radius is half the size of the diameter.

 

 


1)                                            2)                                          3)                                           4)

2.5 cm

 

31 cm

 

13 cm

 

5.6 cm

 
                                                                                                                                         

                                                                                                                 

 

 

 

 

       V =                  V =             V =              V =

 

 

 

 

5)                                            6)                                          7)                                           8)

9.8 cm

 

29 cm

 

8.4 cm

 

38 cm

 
                                                                                                                                        

                                                                                                                 

 

 

 

 

       V =                V =                   V =               V =

 

 

 

 

9)                                          10)                                        11)                                         12)

51 cm

 

6.1 cm

 

3.5 cm

 

27 cm

 
                                                                                                                                        

                                                                                                                 

 

 

 

 

           V =              V =             V =              V =