Triangles: Theorems and Problems 7c
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Geometry Problem
1044.
Triangle, Parallelogram, Midpoint, Area. |
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Geometry Problem
1043.
Right Triangle, Incenter, Excenter, Congruence, Metric Relations. |
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Geometry Problem
1042.
Scalene Triangle, Isosceles, Equal Angles, Parallelogram, Congruence. |
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Geometry Problem
1041.
Quadrilateral, Perpendicular, Diagonals, Congruence, Metric Relations. |
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Geometry Problem
1040.
Isosceles Triangle, Transversal Line, Metric Relations. |
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Geometry Problem
1039.
Isosceles Triangle, Circle, Tangent Line, Parallel Line. |
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Geometry Problem
1038.
Isosceles Triangle, Angle, 80, 20, 25, 65 Degrees. |
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Geometry Problem
1037.
Triangle, Three equal Incircles, Tangent lines, Inradius, Length. |
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Geometry Problem
1036.
Triangle, Three equal Incircles, Tangent lines, Inradius, Equal Inradii. |
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Geometry Problem
1035.
Triangle, Three equal Incircles, Tangent lines, Equivalent triangles, Equal area. |
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Geometry Problem
1034.
Triangle, Three equal Incircles, Tangent lines, Isoperimetric triangles, Equal perimeter. |
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Geometry Problem
1033.
Triangle, Angle Obtuse, Circumcircle, Diameter, Area. |
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Geometry Problem
1030.
Quadrilateral, Triangle, Area, Midpoint, Parallel lines. |
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Geometry Problem
1029.
Right Triangle, 90 Degrees, Angle, Midpoint, Congruence. |
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Geometry Problem
1028.
Right
Triangle, Double, Angle, Midpoint, Congruence. |
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Geometry Problem
1027.
Triangle, Double, Quadruple, Angle, Congruence. |
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Geometry Problem
1026.
Right Triangle, 90 Degrees, Triple Angle, Congruence. |
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Geometry Problem
1025.
Triangle, Double, Triple, Angle, Interior Point. |
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Geometry Problem
1024.
Contact, Gergonne Triangle, Point on an arc of Incircle, Perpendicular, Distances. |
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Geometry Problem
1023.
Triangle, Contact, Gergonne, Product of three distances. |
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Geometry Problem
1021.
Triangle, Cevian, Double Angle, Sides. |
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Geometry Problem
1016.
Triangle, 45 Degrees, Area, Triangle, Quadrilateral, Altitude, Bisector. |
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Geometry Problem
1015.
Right Triangle, Square, Altitude, Metric Relations. |
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Geometry Problem
1014.
Square, Diagonal, 45 Degrees, Angle, Equal Areas, Triangle, Quadrilateral. |
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Geometry Problem
1013.
Square, Line through the Center, Perpendicular, Distance, Metric Relations. |
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Geometry Problem
1012.
Equilateral Triangle, Incenters, Inscribed Circles, Perpendicular, Concurrent Lines. |
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Geometry Problem
1011.
Triangle, Angle Bisector, Vertex, Circle, Center, Radius, Parallel Lines. |
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Geometry Problem
1007.
Hexagon, Midpoint, Triangle, Median, Centroid, Concurrency. |
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Geometry Problem
1005.
Triangle, Circle, Circumcenter, Interior and Exterior Angle Bisector, 90 Degree, Perpendicular. |
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Geometry Problem
1004.
Triangle with Squares, Perpendicular Bisectors, Concurrent Lines. |
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Geometry Problem
1003.
Intersecting Circle, Circumcircle, Chord, Secant, Triangle, 90 Degree, Angle, Perpendicular Lines. |
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Geometry Problem
1002.
Triangle, Circumcircle, Cevian, Parallel Lines, Cyclic Quadrilateral, Concyclic Points. |
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Geometry Problem
1001.
Triangle, Circumcircle, Perpendicular, Perpendicular Bisector, Tangent, Collinear Points. |
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Geometry Problem
1000.
Scalene Triangle, Isosceles, Angle, 120 Degree, Midpoint, Distance, Equilateral, Congruence, Perpendicular, Metric Relations. |
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Geometry Problem 999.
Right Triangle, Midpoint, Median, Double Angle, Congruence. |
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Geometry Problem 998.
Scalene Triangle, Isosceles, Angle, 120 Degree, Midpoint, Equilateral, Congruence. |
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Geometry Problem 997.
Equilateral Triangle, Vertices, Three Parallel Lines, Distance, Metric Relations. |
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Geometry Problem 992.
Triangle, Interior Point, Angles, 20, 30 , 40, 50 Degree. |
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Geometry Problem 991.
Triangle, Incircle, Tangency Points, Isosceles, Midpoint, Collinearity, Congruence, Circle. |
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Geometry Problem 990.
Triangle, Incircle, Median, Cevian, Central Angle, Congruence, Circle, Secant, Midpoint,
Parallel. |
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Geometry Problem 988.
Right Triangle, Cevians, Angles, 30 Degrees, Triple Angle. |
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Geometry Problem 987.
Triangle, Circumcircle, Incenter, Chord, Parallel, Circle, Tangent. GeoGebra, HTML5 Animation for Tablets (iPad, Nexus). |
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Geometry Problem 986.
Triangle, Median, Midpoint, Equal Angles, 45 Degrees. |
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Geometry Problem 985.
Circle, Radius, Perpendicular, Concentric Circles, Congruence, Triangle. |
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Geometry Problem 984.
Triangle, Circumcircle, Altitudes, Midpoint, Collinear Points. |
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Geometry Problem 983.
Regular Hexagon, A point and six triangles, Areas. |
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Geometry Problem 982.
Triangle, Excenters, Excentral Triangle, Circumcenter, Area, Hexagon. |
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Geometry Problem 981.
Triangle, Concurrent Cevians, Midpoints, Area, Hexagon. |
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