A solid cube of side 7 cm is melted to make a cone of height 5 cm, find the
radius of the base of the cone.

1 thought on “A solid cube of side 7 cm is melted to make a cone of height 5 cm, find the<br /> radius of the base of the cone.”

1. Answer:

   r=8.09cm

   Step-by-step explanation:

   side=7cm

   volume of cube=( side)^3

   =(7)^3

   =343

   volume of cone =volume of cube

   1/3π(r) ^2h=343

   1/3*22/7*5*(r) ^2=343

   (r) ^2=343*3*7/110

   (r) ^2=7203/110

   r=√7203/110

   r=8.09

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