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From: gjk@talcott.UUCP (Greg J Kuperberg)
Newsgroups: net.puzzle,net.math
Subject: 3D Geometric Puzzle
Message-ID: <107@talcott.UUCP>
Date: Wed, 14-Nov-84 23:17:59 EST
Article-I.D.: talcott.107
Posted: Wed Nov 14 23:17:59 1984
Date-Received: Fri, 16-Nov-84 04:39:34 EST
Distribution: net
Organization: Harvard
Lines: 12
Xref: genrad net.puzzle:495 net.math:1639

If I'm lucky, this one will be a stumper:

What is the angle between two faces of a regular octahedron?

And an even trickier one:

What is the angle between two faces of a regular icosahedron?
-- 
			Greg Kuperberg
		     harvard!talcott!gjk

"His mind is like a steel trap: full of mice" -Foghorn Leghorn