91. Segment Trisection

Segment Trisection: medians in a triangle trisect a segment formed by lines parallel to those medians
URL: http://www.cut-the-knot.org/Curriculum/Geometry/SegmentTrisection.shtml - 23kb - 19 Jun 2006

92. The MathPro Logo

The MathPro Logo: a generalization of Gergone point
URL: http://www.cut-the-knot.org/Curriculum/Geometry/MathPro.shtml - 23kb - 19 Jun 2006

93. A Problem In an Isosceles Right Triangle

A Problem In an Isosceles Right Triangle
URL: http://www.cut-the-knot.org/Curriculum/Geometry/OrthoBisector.shtml - 23kb - 19 Jun 2006

94. Four 9-Point Circles in a Quadrilateral

Four 9-Point Circles in a quadrilateral are concurrent
URL: http://www.cut-the-knot.org/Curriculum/Geometry/FourNPCircles.shtml - 23kb - 19 Jun 2006

95. Euclid I.43

Euclid I.43: In any parallelogram the complements of the pralellograms about the diameter are equal to one another.
URL: http://www.cut-the-knot.org/Curriculum/Geometry/EuclidI43.shtml - 23kb - 19 Jun 2006

96. Inscribed Angles

Inscribed Angles: two inscribed angles that subtend the same arc are equal
URL: http://www.cut-the-knot.org/Curriculum/Geometry/InscribedAngles.shtml - 23kb - 19 Jun 2006

97. Pascal in a Cyclic Quadrilateral

Pascal in a Cyclic Quadrilateral
URL: http://www.cut-the-knot.org/Curriculum/Geometry/PascalInQuadrilateral.shtml - 23kb - 19 Jun 2006

98. Asymmetric Propeller

Asymmetric Propeller: What is it?
URL: http://www.cut-the-knot.org/Curriculum/Geometry/AsymmetricPropeller.shtml - 23kb - 19 Jun 2006

99. External Angle Bisectors

External Angle Bisectors
URL: http://www.cut-the-knot.org/Curriculum/Geometry/ExternalAngleBisector.shtml - 23kb - 19 Jun 2006

100. Isosceles on the Sides of a Triangle

Isosceles on the Sides of a Triangle
URL: http://www.cut-the-knot.org/Curriculum/Geometry/IsoscelesOnSides.shtml - 23kb - 19 Jun 2006

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