Recent Additions 3, Theorems and Problems, Plane Geometry

Geometry Theorems and Problems - Recent Additions (Page 3 of 15)

Geometry Problem 597
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Quadrilateral, Right Triangle, Isosceles, Angle, Congruence.

Geometry Problem 596
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Quadrilateral, Right Triangle, Isosceles, Midpoint.

Geometry Problem 595
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Triangle, Equal Angles, Isogonal Conjugate, Similarity.

Open Geometry Problems - Index

Geometry Problem 594.
Triangle, Incenter, Incircle, Inradius, Tangency Point, Midpoint, Altitude, Angle, Half the Difference.

Geometry Problem 593.
Triangle, Circumcircle, Collinear Points.

Geometry Problem 592.
Triangle, Incenter, Incircle, Tangency Point, Midpoints, Concurrent Lines, Congruence.

Geometry Problem 591.
Triangle, Incenter, Incircle, Inradius, Tangency Point, Midpoint, Altitude.

Geometry Problem 590.
Triangle, Incenter, Incircle, Tangency Point, Midpoint, Areas.

Geometry Problem 589.
Triangle, Incenter, Incircle, Tangency Points, Midpoint, Perpendicular, Distance.

Geometry Problem 588.
Triangle, Incenter, Incircle, Tangency Points, Midpoints, Distance, Sum.

Geometry Problem 587.
Triangle, Incenter, Incircle, Tangency Point, Midpoint, Distance, Half the Difference.

Geometry Problem 586.
Cyclic Quadrilateral, Diagonals, Any Point, Circumcenters, Circumcircles, Concurrency.

Problem 585.
Cyclic Quadrilateral, Diagonals, Circumcenters, Circumcircles, Concurrency.

Problem 584.
Cyclic Quadrilateral, Diagonals, Circumcenters, Circumcircles, Parallelograms.

Problem 583.
Quadrilateral, Diagonals, Circumcenters, Parallelogram, Octagon, Areas.

Problem 582.
Quadrilateral, Diagonals, Incenters, Metric Relations.

Problem 581.
Volume of two Triangular Pyramids, Equal Trihedral Angle, Product of three Edges.

Geometry Problems 581 - 590.
Quadrilateral, Diagonals, Concurrency, Incenter, Metric Relations, Circumcenters, Parallelogram, Octagon, Areas, Tangency Point, Midpoint, Cyclic Quadrilateral, Volume of two Triangular Pyramids, Equal Trihedral Angle, Product of three Edges.

Problem 580.
Triangles, Equal Angle, Transversal, Product of Sides, Areas.

Problem 579.
Quadrilateral, Diagonals, Triangles, Areas.

Area of a Triangle, Theorems and Problems, Index.

Problem 578.
Circle, Perpendicular Chords, Midpoints, Curvilinear Triangle, Area, 90 Degrees.

Metric Relations in a Right Triangle, Theorems and Problems.

Problem 577.
Isosceles triangle, Midpoint, Perpendicular, Concyclic points, Circle.

Diameters and Chords, Theorems and Problems. Index.

Problem 576.
Centroid, Triangle, Quadrilateral, Parallel, Measurement.

Problem 575.
Cyclic quadrilateral, Angle bisector, Measurement.

Intersection of a Line with a Circle
 

Problem 574.
Circle, Chord, Secant, Angle Bisector, Perpendicular.

Problem 573.
Cyclic quadrilateral, Angle bisector, Perpendicular.

Problem 572.
Right triangle, Median, Circle, Diameter, Excircle, Tangent circles.

Problem 571.
Circle, Diameter, Chord, Perpendicular, Measurement.

Problem 570.
Square, Center, Right Triangles, Congruence, Collinearity.

Problem 569.
Quadrilateral, Excircles, Tangency Points, Congruence.

Problem 568.
Triangle, Excircles, Tangency Point, Congruence.

Geometry Problems 561 - 570.
Right Triangle, Altitude, Angle Bisector, Congruence, Median, Area, Trisector, 60 Degrees, Equilateral, Parallel, Transversal, Circumcircle, Concyclic, Similarity.

Geometry Problems 551 - 560.
Right Triangle, Altitude, Angle Bisector, Congruence, Median, Area, Trisector, 60 Degrees, Equilateral, Parallel, Transversal, Circumcircle, Concyclic, Similarity.

Problem 567.
Right triangle, Incircle, Excircle, Collinear tangency points.

Problem 566.
Quadrilateral, Diagonals, Parallel.

Problem 565.
Triangle, Isogonal lines, Angles, Congruence, Concyclic Points.

Problem 564.
Complete Quadrilateral, Incenter, Excenter, Concyclic Points, Incircle, Excircle.

Problem 563.
Regular Pentagon, Center, Rectangle, Diagonals, Angle.

Problem 562.
Triangle, Cevian, Incenter, Perpendicular, Concyclic Points, Cyclic Quadrilateral.

Problem 561.
Triangle, Cevian, Incenter, Incircle, Perpendicular, Tangent.