Name__________________________

 


                                                              VOLUME OF A SPHERE #1-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.  Use 3.14 for  and round answers to the nearest tenth.

 

 


1)                                            2)                                          3)                                           4)

2.5 cm

 

24 cm

 

12 cm

 

8.4 cm

 
                                                                                                                                         

                                                                                                                 

 

 

 

 

        V = 7,234.6 cu. cm               V = 2,481.5 cu. cm             V = 57,876.5 cu. cm                  V = 65.4 cu. cm

 

 

 

 

5)                                            6)                                          7)                                           8)

4.2 cm

 

13 cm

 

5.2 cm

 

34 cm

 
                                                                                                                                        

                                                                                                                 

 

 

 

 

       V = 20,569.1 cu. cm                 V = 73.6 cu. cm                 V = 1,149.8 cu. cm                   V = 38.8 cu. cm

 

 

 

 

9)                                          10)                                        11)                                         12)

60 cm

 

5.2 cm

 

1.2 cm

 

46 cm

 
                                                                                                                                        

                                                                                                                 

 

 

 

 

            V = 7.2 cu. cm                 V = 407,513.4 cu. cm            V = 588.7 cu. cm                 V = 113,040.0 cu. cm