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Geometry Unsolved Problems
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Home » Olympiad Section » Geometry » Geometry Unsolved Problems
 
4766 Topics • Page 1 of 96 • 1, 2, 3, ..., 94, 95, 96 Next
 Topics   Author   Replies   Views   Last Post 
 No new posts circle   AndrewTom   1    53    Today, at 10:34 am 
Abdek View latest post
 No new posts Two circles   AndrewTom   1    58    Today, at 9:54 am 
luisgeometria View latest post
 No new posts Triangle of minimum area   xxxxtt   1    147    Today, at 9:11 am 
castigioni View latest post
 No new posts regular polygon   jagdish   0    23    Today, at 7:39 am 
jagdish View latest post
 No new posts orthocenter  
with inversion		 mathson   1    40    Today, at 3:44 am 
J.Y.Choi View latest post
 No new posts Question Attachment intersection points   jrrbc   2    207    Yesterday, at 10:11 pm 
jrrbc View latest post
 No new posts points on boundary of convex polygon  
(Indian) RMO 2009 Problem 5		 keyree10   12    389    Yesterday, at 8:24 pm 
Rijul saini View latest post
 No new posts A triangle question is asking AC   fallinlovewithmaths   1    163    Yesterday, at 2:15 pm 
castigioni View latest post
 No new posts Locus   gauss1181   1    128    Yesterday, at 1:45 pm 
castigioni View latest post
 No new posts An inequality for the sides and the angles of a triangle   Ji Chen   0    46    Yesterday, at 10:30 am 
Ji Chen View latest post
 No new posts Attachment triangle with maximal area   jrrbc   2    156    Yesterday, at 6:51 am 
jrrbc View latest post
 No new posts Attachment Nice   CCMath1   1    69    Yesterday, at 1:49 am 
livetolove212 View latest post
 No new posts Geometry problem about vector   CCMath1   3    92    Yesterday, at 12:51 am 
CCMath1 View latest post
 No new posts Geometry problem with vector again   CCMath1   3    95    Yesterday, at 12:49 am 
CCMath1 View latest post
 No new posts Attachment Concurrent  
with inversion		 mathson   5    171    Wed Dec 02, 2009 12:46 pm 
mathson View latest post
 No new posts Find angle in isosceles triangle ABC  
(Indian) RMO 2009 Problem 1		 keyree10   7    498    Wed Dec 02, 2009 10:00 am 
Rijul saini View latest post
 No new posts Find the ratio of angles  
Sharygin contest. The final raund. 2008. Grade 8. Second day. Problem 7		 Doctor A   1    320    Wed Dec 02, 2009 8:39 am 
castigioni View latest post
 No new posts Inscribed circle, parallel lines   Bugi   2    97    Wed Dec 02, 2009 6:23 am 
sunken rock View latest post
 No new posts Question Easy or hard ?  
Inequality		 Nam Luu   0    61    Wed Dec 02, 2009 4:52 am 
Nam Luu View latest post
 No new posts a Point P into a square  
easy		 Abdek   2    91    Wed Dec 02, 2009 3:26 am 
Mathias_DK View latest post
 No new posts ratio in rectangle   hollandman   2    216    Tue Dec 01, 2009 12:16 pm 
luisgeometria View latest post
 No new posts Question Attachment triangle   jrrbc   2    229    Tue Dec 01, 2009 9:23 am 
jrrbc View latest post
 Locked   No new posts one angle of a triangle increases while another decreases   maff   1    57    Tue Dec 01, 2009 7:27 am 
nsato View latest post
 No new posts problem?   inversionA007   0    60    Tue Dec 01, 2009 6:38 am 
inversionA007 View latest post
 No new posts Question Attachment locus of the centers of the circles   jrrbc   3    95    Tue Dec 01, 2009 6:08 am 
jrrbc View latest post
 No new posts concurrency and collinearity   aadil   3    93    Tue Dec 01, 2009 3:33 am 
aadil View latest post
 No new posts I need you help!  
Find min and max		 Nam Luu   0    48    Tue Dec 01, 2009 2:55 am 
Nam Luu View latest post
 No new posts Countable discs/circles   Pythagorean12   1    71    Mon Nov 30, 2009 11:25 pm 
pleurestique View latest post
 No new posts Costa Rican Math Olympiad Problem 3 Level B 2009   trejos   1    75    Mon Nov 30, 2009 9:11 am 
castigioni View latest post
 No new posts Attachment Concurrent  
three circles and two circles		 77ant   3    201    Mon Nov 30, 2009 3:12 am 
Mashimaru View latest post
 No new posts Find x   mathson   4    179    Sun Nov 29, 2009 10:48 pm 
mathson View latest post
 No new posts Another solution   gouthamphilomath   0    53    Sun Nov 29, 2009 9:10 pm 
gouthamphilomath View latest post
 No new posts Question Attachment compass only construction   jrrbc   7    157    Sun Nov 29, 2009 12:32 pm 
jrrbc View latest post
 No new posts Costa Rican Math Olympiad Problem 6 2009   trejos   3    82    Sun Nov 29, 2009 8:40 am 
trejos View latest post
 No new posts Costa Rican Math Olympiad Shortlist Level C   trejos   0    64    Sun Nov 29, 2009 8:33 am 
trejos View latest post
 No new posts Attachment Five points and ten straight lines concurrent   Bob75   2    90    Sun Nov 29, 2009 7:56 am 
nsato View latest post
 No new posts Costa Rican Math Olympiad Problem 3 2009   trejos   0    59    Sun Nov 29, 2009 7:35 am 
trejos View latest post
 No new posts Attachment prove that  
prove that		 bgbgbgbg   6    138    Sun Nov 29, 2009 3:19 am 
Johan Gunardi View latest post
 No new posts Question Attachment circle   jrrbc   2    69    Sun Nov 29, 2009 2:31 am 
jrrbc View latest post
 No new posts Question IMO 2009 problem 2  
Easy or Hard ?		 Shanku   1    133    Sat Nov 28, 2009 3:34 am 
MeKnowsNothing View latest post
 No new posts Attachment geometry   lovem   2    130    Sat Nov 28, 2009 1:46 am 
lajanugen View latest post
 No new posts Question Help!Help   Yafmuzz   11    437    Fri Nov 27, 2009 10:05 pm 
luisgeometria View latest post
 No new posts Drawn through the incenter I of the triangle  
IMO ShortList 1991, Problem 5 (SPA 4)		 orl   2    439    Fri Nov 27, 2009 9:39 pm 
Nam Luu View latest post
 No new posts Three Regional Olympiad problems   pankajsinha   3    175    Fri Nov 27, 2009 11:36 am 
KrokoZyabr View latest post
 No new posts An interesting question more for you (please quickly)   kim77   1    203    Fri Nov 27, 2009 10:39 am 
castigioni View latest post
 No new posts Attachment Who can prove this?   Yafmuzz   1    217    Thu Nov 26, 2009 11:57 am 
sunken rock View latest post
 No new posts Attachment collinear  
need help		 KDS   4    342    Wed Nov 25, 2009 11:19 pm 
livetolove212 View latest post
 No new posts Maximum area taken out  
original		 luimichael   1    312    Wed Nov 25, 2009 9:52 am 
castigioni View latest post
 No new posts Question A Problem...   savy2020   2    115    Wed Nov 25, 2009 12:33 am 
savy2020 View latest post
 No new posts Question Attachment ruler only construction   jrrbc   0    59    Tue Nov 24, 2009 3:47 pm 
jrrbc View latest post
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