32.
Napoleon's Theorem. Proof |
33.
Nagel Point
![](../NagelPoint170.jpg)
34.
Newton's Theorem: Newton's Line.
![](../NewtonTheorem170.jpg)
35.
Nine-Point
Center, Nine-Point Circle, Euler Line
![](../center/nine_point_center_euler_170.jpg)
36.
Parallelogram with Squares theorem
![](../parallelogramsquare170x100.jpg)
37.
Pascal's Mystic Hexagram Theorem Proof
![](../circle/pascal_theorem_proof_170.jpg)
38.
Pentagons and Pentagrams.
Menelaus and Collinearity
![](../pentagram_menelaus170x100.jpg)
39.
Platonic Solids.
Interactive animation.
![](../solid/platonic_solid_170.jpg)
40.
Poncelet's Theorem. Proof |
|