The radius of the Smallest possible sphere in which you can put a cube of side a units is 9 cm. Find the length of each side of the cube Share with your friends Share 0 Aditi Jain. answered this We have,radius of the sphere = r = 9 cmNow, diagonal of the sphere, d = 2r = 18 cmNow, the cube is fitted inside the sphere.So, diagonal of the cube = diameter of the sphere⇒diagonal of cube = 18 cm⇒3s = 18⇒s = 183 = 1833 = 63So, length of each side of cube = 63 cm -1 View Full Answer Akkash Sachin answered this sorry -1 Shyam Sundar Patnaik answered this i think 9 cm 1 Hari Krishna Sai answered this Dude,please go and check it out and refer either of these two sites,learncbse.in or schools.aglasem.com,you will surely get the complete solutions given by the experts.Please trust mee.... 0 Hari Krishna Sai answered this Is "Sorry" "Sorry" "Sorry" your commercial and official answer,you have got nothing else 0 Happy Buddy answered this yes answer is 9cm maybe!!! 1