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| 32.
Napoleon's Theorem. Proof |
33.
Nagel Point
34.
Newton's Theorem: Newton's Line.
35.
Nine-Point
Center, Nine-Point Circle, Euler Line
36.
Parallelogram with Squares theorem
37.
Pascal's Mystic Hexagram Theorem Proof
38.
Pentagons and Pentagrams.
Menelaus and Collinearity
39.
Platonic Solids.
Interactive animation.
| 40.
Poncelet's Theorem. Proof |
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