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.  Use 3.14 for  and round answers to the nearest tenth.

 

 


1)                                            2)                                          3)                                           4)

1.5 cm

 

8.1 cm

 

4.3 cm

 

6.7 cm

 
                                                                                                                                         

                                                                                                                 

 

 

 

 

          V = 332.9 cu. cm                V = 1,259.2 cu. cm               V = 2,225.0 cu. cm             V = 14.1       cu. cm

 

 

 

 

5)                                            6)                                          7)                                           8)

3.2 cm

 

5.8 cm

 

0.8 cm

 

2.5 cm

 
                                                                                                                                        

                                                                                                                 

 

 

 

 

          V =     2.1 cu. cm                V = 65.4 cu. cm                    V = 816.9 cu. cm                V = 137.2       cu. cm

 

 

 

 

9)                                          10)                                        11)                                         12)

5.8 cm

 

5.2 cm

 

1.4 cm

 

4.6 cm

 
                                                                                                                                        

                                                                                                                 

 

 

 

 

          V = 11.5 cu. cm                  V = 407.5 cu. cm                  V = 588.7 cu. cm                V = 816.9       cu. cm