Hi,

Tennis balls are sold in rectangular box of six balls. 

Each ball has a radius of 3cm (d = 6cm) and a volume of 113cubic cm. 



a) write down the dimensions of the rectangular box.

  6*6cm = 36cm  by 6cm by 6cm

b) calculate the volume of the rectangular box = 36cm*6cm*6cm = 1296cm^3

c) calculate the volume of the rectangular box not occupied by the balls

   1296cm^3 - 6* 113cm^3 = 618cm^3

d) calculate the percentage of the volume of the rectangular box which 

is occupied by the balls. 618/1296 = 48% 

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