From: Paul Gailiunas Newsgroups: sci.math Subject: Re: 3d-geometry question Date: Mon, 23 Jun 1997 23:07:59 GMT > how to calculate the corner points of an dodecahedron constructed > around > a sphere? can anyone help? The coordinates of the vertices are cyclic permutations of (0,t^-1,t), also with negative values, and (1,1,1), also with negative values. t=(1+sqrt(5))/2 = 1.618.... This dodecahedron has an insphere of radius Tan(54)=1.37638.... -- __ __ __ __ __ ___ _____________________________________________ |__||__)/ __/ \|\ ||_ | / | || \\__/\__/| \||__ | /...Internet access for all Acorn RISC machines ___________________________/ paulg@argonet.co.uk