Here we have 7 triangles using 15 matchsticks.
Add some more matchsticks (the fewer the better) so that there are a total of 18 triangles with DIFFERENT sizes.
Puzzles made of matchsticks!
Here we have 7 triangles using 15 matchsticks.
Add some more matchsticks (the fewer the better) so that there are a total of 18 triangles with DIFFERENT sizes.
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