document.write( "Question 1181734: Four balls of radius 2 are placed in a square box whose inside base edge is 10. In the space between these balls a fifth ball is placed. Find the minimum depth of the box in order that the cover will just touch the fifth ball, if its radius is (a) 3: (b) 4. \n" ); document.write( "
Algebra.Com's Answer #811625 by ikleyn(52946)\"\" \"About 
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