perplexus.info :: Geometry : Trapped!

Trapped! (Posted on 2004-02-19)

Choose any four points in a plane, such that no three are collinear and the four do not lie on a circle.

Show that one of the points must lie within the circle formed by the other three.

See The Solution Submitted by DJ

Rating: 4.4444 (9 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Question on the official solution	JayDeeKay	2010-03-05 10:52:09
re(2): 'Within' includes 'on'?	TomM	2004-02-20 22:21:43
Four Points in a Plane	Anthony	2004-02-20 21:11:38
re: a proof	TomM	2004-02-20 20:24:59
No Subject	tan	2004-02-20 00:51:12
Euler, Feuerbach, et. al.	Penny	2004-02-19 18:59:18
re: 'Within' includes 'on'?	Federico Kereki	2004-02-19 15:09:40
'Within' includes 'on'?	e.g.	2004-02-19 14:31:20
a proof	Charlie	2004-02-19 14:17:56

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