Geometry Angles,Theorems and Problems - 4
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Proposed Problem 376.
Triangle, Excenter, Internal and External Angle Bisectors. |
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Proposed Problem 375.
Triangle, Excenter, External Angle Bisectors. |
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Proposed Problem 374.
Triangle, Incenter, Internal Angle Bisectors. |
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Proposed Problem 373.
Square, Inscribed Circle, Diagonal, Perpendicular, Angle. |
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Proposed Problem 372.
Circles, Common Internal and External Tangent, Angles. |
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Proposed Problem 363.
Right triangle, Congruence, Angles. |
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Proposed Problem 361.
Right triangle, Incircle, Incenter, Tangency points, Angle. |
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Proposed Problem 358.
Isosceles triangle 80-80-20, Circle, Angles, Congruence. |
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Proposed Problem 354.
Rhombus, Square, 45 degrees. |
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Proposed Problem 350.
Triangle, Cevian, Incircles, Tangents, Tangency Point, Angles. |
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Proposed Problem 274.
Isosceles Triangle, 80-80-20, Angles. |
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Proposed Problem 216. Quadrilateral, Angle Bisectors, and
Concurrency.
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Proposed Problem 215.
Quadrilateral, Angle Bisectors, and Cyclic
Quadrilateral.
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Proposed Problem 208. Triangle, Excircles, Angles, 360 degrees.
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Proposed Problem 199. Triangle, Quadrilateral, Angles.
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Proposed Problem 198. Triangle, Quadrilateral, Angles.
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Proposed Problem 187. Right
Triangle, Altitude, Incenters, Circles, Angles. |
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Proposed Problem 185. Trapezoid,
Triangles and Angles.
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Proposed Problem 184. Triangle
and Angles.
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Proposed Problem 182. Overlapping
Circles, Find an angle.
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Proposed Problem 181. Circular
Sector of 90 degrees, find an angle.
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Proposed Problem 179. Rhombus,
Square, Diagonal, Angle.
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Proposed Problem 134. Orthic
Triangle, Altitudes, Angle Bisectors, Orthocenter, Incenter. |
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Proposed Problem 133. Triangle,
Angle Bisectors, Collinear Points.
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Triangle with the
bisectors of the exterior angles. Collinearity. Key concept:
Menelaus Theorem.
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Proposed Problem 128. Incenter of
a Triangle, Angle Bisectors, Sum of Ratios.
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Proposed Problem 127. Centroid
and Incenter of a Triangle, Parallel, Proportions.
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Proposed Problem 126. Incenter of
Triangle, Angle Bisector, Proportions.
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Proposed Problem 111. Orthogonal
Circles (two circles that are perpendicular at their intersection). |
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Proposed Problem 109. Angles,
Right Triangle, Cevian.
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Proposed Problem 108. Angles,
Triangle, Median. |
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Proposed Problem 107. Angles,
Triangle. Cevian. |
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Proposed Problem 106. Angles,
Triangle. Cevian. |
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Proposed Problem 105.Angles,
Triangle. Interior Point. |
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Proposed Problem 104. Angles,
Triangle. |
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Proposed Problem 101.Equilateral
Triangle, Pythagorean Theorem, Angles. |
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Proposed Problem 1:
Angles of a Triangle. Midpoint,
Congruence. Hints are provided. |
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Proposed Problem 13:
Angles of a Triangle. Hints are
provided. |
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Proposed Problem 77: Angles of a Circle.
Parallel lines, Cyclic quadrilateral.
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Proposed Problem 74: Three Intersecting Circles.
Cyclic quadrilateral, Angles.
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Proposed Problem 73: Three Intersecting Circles.
Cyclic quadrilateral. Angles.
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Proposed Problem 72: Intersecting Circles.
Cyclic quadrilateral, Chords, Parallel. Angles.
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Proposed Problem 71: Cyclic Quadrilateral.
Angles
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Proposed Problem 67: Triangle, Circumcircle, Angles, Cyclic
Quadrilateral.
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Proposed Problem 60: Isosceles
triangle and angles. |
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Proposed Problem 57: Angle bisector, circles
Cyclic Quadrilateral. |
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Proposed Problem 56: Angle bisector, circles
Parallel Lines. |
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Proposed Problem 55: Angle bisector, circles
Cyclic Quadrilateral. |
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Proposed Problem 54: Angle bisector, circles
Midpoint of arc. |
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Proposed Problem 53: Angle bisector, circles |
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Proposed Problem 52: Triangle, angles, incircle.
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Proposed
Problem 50. Triangle with Equilateral triangles.
Seventeen conclusions. Angles
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Proposed Problem 49.
Angles and right triangle.
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Proposed Problem 48.
Angles and triangles.
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Proposed Problem 47.
Angles and triangles.
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Proposed Problem 46.
Angles and triangles.
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Proposed Problem 45.
Angles and triangles.
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Proposed Problem 44.
Angles and triangles.
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Proposed Problem 43.
Angles and triangles. |
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Proposed Problem 42.
Angles and triangles. |
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Proposed Problem 40.
Triangle, Incenter, Excenter, Angles 80, 40, Distances. |
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Proposed Problem 39.
Triangle, Incircle, Bisector, Cyclic Quadrilateral and angles. |
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Proposed
Problem 38.
Right Triangle, altitude, incircles, incenters, and angles. |
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Proposed
Problem 37.
Right Triangle, altitude, incircles, incenters, orthocenter, and angles. |
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Proposed Problem 33.
Triangle and quadrilateral. Angles. |
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Geometry Test:
Angles K-12 |
