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Nine-point circle
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#	Item
1	2013 Autograph Training Material Exercises demonstrating how to use Autograph to visualise mathematical concepts in the Add to Reading List Source URL: www.autograph-maths.com Language: English - Date: 2013-06-20 04:13:56 Educational technology Display technology Interactive whiteboard Office equipment Vertex Curve Triangle Graph of a function Nine-point circle Geometry Mathematics Triangle geometry
2	2013 Autograph Training Material Exercises demonstrating how to use Autograph to visualise mathematical concepts in the Add to Reading List Source URL: www.autograph-math.com Language: English - Date: 2013-06-20 04:13:56 Educational technology Display technology Interactive whiteboard Office equipment Vertex Curve Triangle Graph of a function Nine-point circle Geometry Mathematics Triangle geometry
3	PDF Document Add to Reading List Source URL: imo-official.org Language: English - Date: 2012-07-21 05:58:10 Circles Circumscribed circle Triangle Incircle and excircles of a triangle Cyclic quadrilateral Altitude Tangent Fermat point Nine-point circle Geometry Triangle geometry Triangles
4	On the I--Centers of the Triangle Add to Reading List Source URL: digital.library.okstate.edu Language: English - Date: 2009-01-09 16:55:06 Quadrilaterals Triangles Triangle Incircle and excircles of a triangle Rectangle Circumscribed circle Inscribed figure Nine-point circle Cyclic quadrilateral Geometry Triangle geometry Circles
5	Three points on incircle Avni Pllana Problem: Let ABC be an arbitrary triangle. Construct points D, E, F on the incircle of triangle ABC, such that triples {C, D, E}, {B, E, F}, {A, F, D} are collinear respectively. Add to Reading List Source URL: trisectlimacon.webs.com Language: English Incircle and excircles of a triangle Triangles Conic sections Quadrilaterals Triangle Tangential quadrilateral Nine-point circle Geometry Triangle geometry Circles
6	Some results on tangential triangle Avni Pllana Let AtBtCt be the tangential triangle of triangle ABC, as shown in Fig. 1. B1 Add to Reading List Source URL: trisectlimacon.webs.com Language: English Circles Incircle and excircles of a triangle Circumscribed circle Triangle Nine-point circle Euler line Barycentric coordinate system Altitude Medial triangle Geometry Triangle geometry Triangles
7	Incenter and Centroid Avni Pllana Let ABC be an arbitrary triangle as shown in Fig. 1. Gb Add to Reading List Source URL: trisectlimacon.webs.com Language: English Circumscribed circle Circumconic and inconic Isogonal conjugate Triangle Equilateral triangle Nine-point circle Isotomic conjugate Euler line Trigonometric functions Geometry Triangle geometry Incircle and excircles of a triangle
8	Deltoid as locus of orthopoles Avni Pllana Let ABC be an arbitrary triangle, and let P be an arbitrary point on the circumcircle of triangle ABC, see Fig. 1. Add to Reading List Source URL: trisectlimacon.webs.com Language: English Circumscribed circle Nine-point circle Triangle Circle Tangent Deltoid curve Medial triangle Geometry Triangle geometry Simson line
9	Circle Connections Avni Pllana Let ABC be an arbitrary triangle, and IaIbIb, AmBmCm its respectively excentral, median triangles as shown in Fig. 1. Add to Reading List Source URL: trisectlimacon.webs.com Language: English Triangles Incircle and excircles of a triangle Triangle Homothetic center Extouch triangle Nine-point circle Geometry Triangle geometry Circles
10	FGcumulativeauthorindex.dvi Add to Reading List Source URL: forumgeom.fau.edu Language: English - Date: 2014-01-23 13:54:46 Circles Triangles Cyclic quadrilateral Bicentric quadrilateral Tangential quadrilateral Triangle Equilateral triangle Nine-point circle Malfatti circles Geometry Quadrilaterals Triangle geometry

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