Triangular Number — T(7) = 28 — free printable diagram
Free maths resource for teachers · CC BY-NC 4.0
About this illustration
Visual of the 7th triangular number (28) as a triangle of 28 navy dots. For teaching number patterns and sequences.
How to use
- 1Right-click the image and choose “Save image as”, or use the download button.
- 2Use it in your classroom worksheets, slides or printables — free under CC BY-NC 4.0.
- 3Attribute as “Image by Kuraplan” or link back to kuraplan.com. Not for commercial resale.
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