Using six matchsticks, how can you form exactly four equilateral triangles?
Category: Math · Difficulty: expert
Hint: Think in three dimensions.
Answer
Form a tetrahedron
Explanation
A tetrahedron uses 6 edges (matchsticks) to form 4 triangular faces.
This is a expert math riddle — one of the harder riddles here. The answer is Form a tetrahedron.
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