Difference between revisions of "1992 OIM Problems/Problem 3"

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~translated into English by Tomas Diaz. ~orders@tomasdiaz.com
 
~translated into English by Tomas Diaz. ~orders@tomasdiaz.com
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== Solution ==
 
== Solution ==
 +
* Note.  I actually competed at this event in Venezuela when I was in High School representing Puerto Rico.  I got full points for part a and partial points for part b.  I don't remember what I did.  I will try to write a solution for this one later.
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{{solution}}
 
{{solution}}
  
 
== See also ==
 
== See also ==
 
https://www.oma.org.ar/enunciados/ibe7.htm
 
https://www.oma.org.ar/enunciados/ibe7.htm

Revision as of 18:20, 14 December 2023

Problem

In an equilateral triangle $ABC$ whose side has length 2, the circle $G$ is inscribed.

a. Show that for every point $P$ of $G$, the sum of the squares of its distances to the vertices $A$, $B$ and $C$ is 5.

b. Show that for every point $P$ in $G$ it is possible to construct a triangle whose sides have the lengths of the segments $AP$, $BP$ and $CP$, and that its area is:

\[\frac{\sqrt{3}}{4}\]

~translated into English by Tomas Diaz. ~orders@tomasdiaz.com


Solution

  • Note. I actually competed at this event in Venezuela when I was in High School representing Puerto Rico. I got full points for part a and partial points for part b. I don't remember what I did. I will try to write a solution for this one later.

This problem needs a solution. If you have a solution for it, please help us out by adding it.

See also

https://www.oma.org.ar/enunciados/ibe7.htm