2013-05-26T14:08:01ZFluxBBhttp://www.mathisfunforum.com/viewtopic.php?id=19490Thanks.]]>http://www.mathisfunforum.com/profile.php?id=1983882013-05-26T14:08:01Zhttp://www.mathisfunforum.com/viewtopic.php?pid=269749#p269749In book 3 of the Elements, Euclid treats it as a postulate (definition).
definition 11. Similar segments of circles are those accepting equal angles,
Bob
]]>http://www.mathisfunforum.com/profile.php?id=676942013-05-26T13:51:37Zhttp://www.mathisfunforum.com/viewtopic.php?pid=269746#p269746"in any circle a central angle is proportional to the arc it creates"-is this a postulate or proposition?]]>http://www.mathisfunforum.com/profile.php?id=1983882013-05-26T11:46:51Zhttp://www.mathisfunforum.com/viewtopic.php?pid=269741#p269741