Koos: These are not Euclidean triangles. The shape on the top has a concave (pseudo)hypotenuse, The shape on the bottom has a convex (pseudo)hypotenuse, resulting in more area than the shape on the top. Arun Koos Koen <koos@KNOWINTER.COM>@Lists.RWTH-Aachen.DE on 02/07/2000 10:38:05 AM Sent by: ifip-tc6-admin@Lists.RWTH-Aachen.DE To: ifip-tc6@Lists.RWTH-Aachen.DE cc: Subject: [ifip-tc6] Puzzel for Tibor First one with the correct answer wins a mystery prize. Regards Koos Koen Knowhow International PO Box 87694 Houghton 2041 South Africa ------------------------------------- Tel: +27(0)824436430 koos@knowinter.com ------------------------------------- (See attached file: magic_1.gif)