| Artist | : | Ptolemy's Theorem | Proof without Words |
| Title | : | Mathematical Visual Proofs |
| Duration | : | 101 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |
| Artist | : | Ptolemy's Theorem | Proof without Words |
| Title | : | Mathematical Visual Proofs |
| Duration | : | 101 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |