Difference between revisions of "2002 IMO Problems/Problem 2"
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==Problem== | ==Problem== | ||
| − | + | <math>BC</math> is a diameter of a circle center <math>O</math>. <math>A</math> is any point on the circle with <math>\angle AOC \not\le 60^\circ</math>. <math>EF</math> is the chord which is the perpendicular bisector of <math>AO</math>. <math>D</math> is the midpoint of the minor arc <math>AB</math>. The line through <math>O</math> parallel to <math>AD</math> meets <math>AC</math> at <math>J</math>. Show that <math>J</math> is the incenter of triangle <math>CEF</math>. | |
| − | + | ||
| − | + | ==Solution== | |
| + | {{solution}} | ||
| + | |||
| + | ==See Also== | ||
| + | {{IMO box|year=2002|num-b=1|num-a=3}} | ||
Latest revision as of 09:32, 5 July 2024
Problem
is a diameter of a circle center 
. 
is any point on the circle with 
. 
is the chord which is the perpendicular bisector of 
. 
is the midpoint of the minor arc 
. The line through parallel to 
meets 
at 
. Show that is the incenter of triangle 
.
Solution
This problem needs a solution. If you have a solution for it, please help us out by adding it.
See Also
| 2002 IMO (Problems) • Resources | ||
| Preceded by Problem 1 |
1 • 2 • 3 • 4 • 5 • 6 | Followed by Problem 3 |
| All IMO Problems and Solutions | ||
