Triangle with Double Angle, Theorems and Problems - Table of Content

Geometry Problem 1482.
Right Triangle, Perpendicular, Double Angle, Measurement.

Geometry Problem 1387.
Quadrilateral, Double Angle, Congruence, Isosceles Triangle.

Problem 1336.
Right Triangle, Cevian, Double Angle, Perpendicular, 90 Degrees.

Geometry Problem 1174
Triangle, Quadrilateral, Double, Triple, Angle, Congruence, Excenter, Angle Bisector.

Geometry Problem 1163.
Isosceles Triangle, Congruence, Double Angle, Circle, Concyclic Points, Circumcenter, Perpendicular, Angle Bisector.

Geometry Problem 1162.
Triangle, Congruence, Double Angle, Parallel Lines, Circle, Circumcenter.

Geometry Problem 1079.
Quadrilateral, Isosceles Triangle, Diagonals, Double Angle.

Geometry Problem 1028.
Right Triangle, Double, Angle, Midpoint, Congruence.

Geometry Problem 1027.
Triangle, Double, Quadruple, Angle, Congruence.

Geometry Problem 1026.
Right Triangle, 90 Degrees, Triple Angle, Congruence.

Geometry Problem 1025.
Triangle, Double, Triple, Angle, Interior Point.

Geometry Problem 1021.
Triangle, Cevian, Double Angle, Sides.

Geometry Problem 999.
Right Triangle, Midpoint, Median, Double Angle, Congruence.

Geometry Problem 913.
Right Triangle, Double Angle, Triple Angle, Metric Relations.

Geometry Problem 912.
Right Triangle, Double Angle, Triple Angle, Perpendicular Lines.

Geometry Problem 911.
Right Triangle, Double Angle, Triple Angle, Concyclic Points, Cyclic Quadrilateral.

Geometry Problem 882
Triangle, Angle x, 2x, 7x, Cevian, Congruence, Auxiliary Lines.

Geometry Problem 849
Special Right triangle, Catheti or legs ratio 1:3, 18.5 Degrees. Double angle.

Geometry Problem 848
Special Right triangle, Catheti or legs ratio 1:2, 26.5 Degrees. Double angle.

Geometry Problem 835
Isosceles Triangle, Double Angle, Triple Angle, Auxiliary Lines.

Geometry Problem 739.
Triangle, Double Angle, External Angle Bisector. Congruence.

Geometry Problem 515.
Triangle, Double Angle, Altitude, Measure.

Geometry Problem 513.
Triangle, Double Angle, Exterior Angle Bisector, Measure.

Geometry Problem 511.
Triangle, Double Angle, Angle Bisector, Measure.

Geometry Problem 498.
Triangle, Angle Bisector, Double Angle, Measure.

Geometry Problem 45.
Angle, Double Angle,Triangles, 30-60 degrees.

Geometry Problem 44.
Angles, Double Angle and triangles, 30-60 degrees.

Geometry Problem 43.
Angles, Double Angle equal segments, and triangles, 30-60 degrees.

Geometry Problem 42.
Angles, Double Angle, equal segments, and triangles, 30-60 degrees.

Geometry Problem 18.
Right triangle, cevian, Angles, Double Angle.

Geometry Problem 17.
Right triangle, altitude, Angle, Double Angle.

Geometry Problem 6.
Triangle, Cevian, Double Angle, equal segments, and angles
Solutions.