Solid 3Dhard
0:00.0
Three spheres of radius are placed on a table such that each sphere touches the other two. A fourth sphere of the same radius is placed on top of them. What is the height of the top of the fourth sphere from the table?
Three spheres of radius are placed on a table such that each sphere touches the other two. A fourth sphere of the same radius is placed on top of them. What is the height of the top of the fourth sphere from the table?