Need the net volume of an icosahedron within a 1,200 cubic meter sphere...the panels are 3 cm.s thick....... I came up with 714.59...... much obliged love, cfa -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://waste.org/pipermail/pynchon-l/attachments/20090120/58c400f5/attachment.html>