| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | congruent triangles | African countries | Applied in traditional art and craftwork, less emphasis on formal proofs | 1 |
| 2 | instrument triangle | African countries | Not commonly used and may not have the same cultural significance as in Western countries | 1 |
| 3 | shape of a triangle | African cultures | Associated with mystical and spiritual significance in traditional beliefs | 1 |