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Previous Page | Puzzle
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Arrange 12 toothpicks on your desk to form the shape shown below.
Warm-Up Challenges
- Remove two toothpicks to leave exactly four congruent triangles.
- Remove two toothpicks to leave three congruent triangles and two congruent
parallelograms.
- Remove two toothpicks to leave two congruent triangles and two congruent
parallelograms.
- Remove two toothpicks to leave exactly three congruent triangles and a parallelogram.
Make a sketch of each solution you discover on the back of this paper. There
may be more than one way to solve a challenge.
Main Challenges Worksheet Previous Page | Puzzle
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