Triangles in triangles
Q01. Diagram
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Q02. Triangles in diagram 149
- 1. Large erect triangle = 1
- 2. 2nd large erect triangle = 3
- 3. 3rd large erect triangle = 6
- 4. 4th large erect triangle = 10
- 5. 5th large erect triangle = 15
- 6. 6th large erect triangle = 21
- 7. 7th large erect triangle = 28
- 8. Total = 1 + 3 + 6 + 10 + 15 + 21 + 28 = 84
- 9. Note this is numbers in triangular patterns
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Q03. Reference
Reference
- 1. QB program in C:\ZQB2000\QB98
- 2. Trianular number sequences
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