The archive
Every proof, in one list.
Category
Difficulty
- A Theorem That Doesn't Need a Right Angle
- Any Shape Will Do
- Behold
- Four Points on a Circle
- Out and Back In
- Perigal's Quartering
- The Altitude's Shadow
- The Bride's Chair
- The Circle in the Corner
- The Congressman's Trapezoid
- The Leg That Grows
- The Sliding Squares
- The Tilted Square
- The Twin Hexagons
- Tip to Tail
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