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)

15 cm

 

11 cm

 

3 cm

 

7 cm

 
                                                                                                                                         

                                                                                                                 

 

 

 

 

          V = 113.0 cu. cm                V = 1,436.0 cu. cm               V = 5,572.5 cu. cm             V = 14,130.0 cu. cm

 

 

 

 

5)                                            6)                                          7)                                           8)

3.7 cm

 

28 cm

 

20 cm

 

2.4 cm

 
                                                                                                                                        

                                                                                                                 

 

 

 

 

          V = 33,493.3 cu. cm           V = 57.9 cu. cm                   V = 91,905.7 cu. cm           V = 212.1 cu. cm

 

 

 

 

9)                                          10)                                        11)                                         12)

6.8 cm

 

52 cm

 

40 cm

 

6.6 cm

 
                                                                                                                                         

                                                                                                                 

 

 

 

 

          V = 267,946.7 cu. cm         V = 1,203.6 cu. cm              V = 588,678.8 cu. cm         V = 1,316.4 cu. cm