From: utzoo!decvax!duke!harpo!npoiv!alice!rhm
Newsgroups: net.math
Title: another construction problem
Article-I.D.: alice.829
Posted: Mon Aug  2 12:40:38 1982
Received: Tue Aug  3 00:47:02 1982



Given five points that lie on a circle, construct with straightedge
alone, a sixth point that also lies on the same circle.
[The circle is not given, of course, only the five points]
[A straightedge has no marks and cannot be marked - it only finds the
line joining two points]