


Unsolved problems in decagon geometry
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hình thập giác
- Irregular decagons that can form a tiling
- Petrie polygons of higher-dimensional polytopes that are decagons
- Hình thập giác xuất hiện ở đâu trong tự nhiên
- The geometry of snowflakes and other crystalline structures
- The golden ratio and the regular decagon
- Books about decagons and geometry
- Further exploration of decagonal patterns
- Công thức tính số đường chéo của hình thập giác
- Các trang web và ứng dụng hỗ trợ học về hình thập giác
- Computer-generated art with decagonal symmetry
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