16 toothpicks make 8 small triangles, as shown. Can you remove 4 toothpicks so as to leave exactly 4 triangles? No toothpick can stay unless it is part of a complete triangle. Good luck!
Solution
16 toothpicks make 8 small triangles, as shown. Can you remove 4 toothpicks so as to leave exactly 4 triangles? No toothpick can stay unless it is part of a complete triangle. Good luck!