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**{7/3}****Member**- Registered: 2013-02-11
- Posts: 210

"in any circle a central angle is proportional to the arc it creates"-is this a postulate or proposition?

*Last edited by {7/3} (2013-05-25 23:48:23)*

There are 10 kinds of people in the world,people who understand binary and people who don't.

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,647

In book 3 of the Elements, Euclid treats it as a postulate (definition).

definition 11. Similar segments of circles are those accepting equal angles,

Bob

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**{7/3}****Member**- Registered: 2013-02-11
- Posts: 210

Thanks.

There are 10 kinds of people in the world,people who understand binary and people who don't.

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