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Circles, Theorems and Problems: Table of Content
(Page 9 of 10)
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Circle definition.
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Eyeball Theorem:
Animated Angle to Geometry Study.
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Seven Circles Theorem
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Equal Incircles Theorem |
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Archimedes' Book
of Lemmas
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Butterfly Theorem |
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Triangle Centers
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Problem 32.
Triangle, Cevian, Incircles, Tangents. |
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Euler and his beautiful and
extraordinary formula |
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Problem
31.
Right
Triangle, Incircle, Collinears.
Problem
30.
Right
Triangle, Incircle, Inradius. |
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Ptolemy's Theorem.
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Cyclic
Quadrilateral: Ratio of the Diagonals
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Spieker Center
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Proposed
Problem 29.
Right
Triangle, altitude, incircle and inradius. Ten conclusions. |
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Problem 29:
Geometry Help.
Facts you should know. |
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Semiperimeter and incircle |
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Semiperimeter and excircles of a triangle |
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Semiperimeter, incircle and excircles of a triangle |
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Nagel Point
Theorem |
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Gergonne Point Theorem |
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Monge &
d'Alembert Three Circles Theorem I with Dynamic Geometry |
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Monge & d'Alembert Three Circles
Theorem II with Dynamic Geometry |
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Miquel's
Pentagram with Dynamic Geometry |
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Miquel's Pentagram Theorem. Proof |
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Johnson's Theorem |
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Simson Line |
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Angle between two
Simson Lines |
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