Question
Mon February 27, 2012 By:

The radius of the largest sphere that can be obtained by melting a cube of side 7 cm.

Expert Reply
Mon February 27, 2012
Volume of cube = 7*7*7 = 343
Volume of sphere = (4/3)(pi)r3
Now, (4/3)(pi)r3  = 343 
r3  = 343(3/4)(7/22) = 257.25
r3  = 81.85
r = 4.34 cm
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