Solution:
We can make any number of triangles from 1 up to 10. There are multiple solutions for each number. For examples, click here.
Labels
- 2D spatial reasoning
- 3D spatial reasoning
- alternate number bases
- area problems
- consecutive numbers and other sequences
- counting problems
- factors and multiples
- finding and extending patterns
- fractions
- geometry
- graph theory
- logic
- nets
- number bond practice for young children
- place value
- practice with addition/subtraction
- practice with decimal arithmetic
- practice with multiplication
- reflections/rotations
I can only find 7 triangles in the star-shaped 10-triangles solution! I can't find any other website that helps to explain this solution.
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