Geometry Theorems and Problems - Recent Additions (Page 4 of 15) Geometry Problem 1063. Triangle, Orthocenter, Altitudes, Equal Product of the Lengths of Segments. Geometry Problem 1062. Scalene Triangle with an angle of 60 degrees, Euler Line, Orthocenter, Circumcenter, Distance, Congruence, Transversal. Geometry Problem 1061. Triangle, Inradius (r), Circumradius (R), Circumcircle, Angle Bisector, Distance from a point to a Line, Perpendicular. Geometry Problem 1060. Triangle, Incircle, Incenter, Inscribed circle, Tangent, Angle. Geometry Problem 1059. Triangle, Circumcircle, Orthocenter, Altitude, Perpendicular, Reflection of a Point over a Line, Collinear Points, Simson Line, Congruence. Geometry Problem 1058. Triangle, Sum of the Areas, Altitude, Perpendicular, Circumcircle, Circle, Diameter. van Aubel's Theorem. Quadrilateral with Squares. Proof with animation for Tablets, iPad, Nexus, Galaxy. Geometry Problem 1057. Triangle, Area, Circle with Perpendicular Diameters, Tangent, Secant. Geometry Problem 1056. Triangle, Exradius, Reciprocals of the Altitudes, Multiplicative Inverse, Perpendicular, Excircle, Circle. Geometry Problem 1055. Triangle, Altitude, Perpendicular, Area, Circumradius, Circle. Geometry Problem 1054. Triangle, Altitude, Orthocenter, Circumcenter, Perpendicular, Midpoints. Geometry Problem 1053. Triangle, Two Perpendicular Medians, Midpoint, Congruence. Geometry Problem 1052. Triangle, Quadrilateral, Three Circumcircles, Circle, Concyclic Points, Cyclic Quadrilateral. Geometry Problem 1051. Triangle, Square, Semicircle, Arc, Area. Geometry Problem 1050. Regular Hexagon, Center, Any Point, Inside, Outside, Distance, Metric Relations, Congruence. Geometry Problem 1049. Hexagon inscribed, Circle, Circumcircle, Congruence, Angles. Geometry Problem 1048. Circles, Tangent, Perpendicular, Diameter, Angle Bisector. Geometry Problem 1047. Parallelogram, Parallel Lines, Concurrent Lines, Diagonals. Geometry Problem 1046. Rectangle, Circle, Circumradius, Metric Relations. Geometry Problem 1045. Quadrilateral, Diagonal, Triple Angle, Triangle, Congruence. Geometry Problem 1044. Triangle, Parallelogram, Midpoint, Area. Geometry Problem 1043. Right Triangle, Incenter, Excenter, Congruence, Metric Relations. Geometry Problem 1042. Scalene Triangle, Isosceles, Equal Angles, Parallelogram, Congruence. Geometry Problem 1041. Quadrilateral, Perpendicular, Diagonals, Congruence, Metric Relations. Geometry Problem 1040. Isosceles Triangle, Transversal Line, Metric Relations. Geometry Problem 1039. Isosceles Triangle, Circle, Tangent Line, Parallel Line. Geometry Problem 1038. Isosceles Triangle, Angle, 80, 20, 25, 65 Degrees.

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Jul 13, 2014