Triangle Puzzle: Which Number Replaces the ? (中文)
Three triangles have numbers at each corner. One number is missing — find the hidden rule to solve it.
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Three triangles have numbers at each corner. One number is missing — find the hidden rule to solve it.
暂无解答，赶快成为第一个贡献者！
有不同的解题思路？分享您的解析。