How many non-congruent  triangles can be drawn such that their vertices lie on the corners of a unit cube?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
How many non-congruent  triangles can be drawn such that their vertices lie on the corners of a unit cube?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
3
How many non-congruent  triangles can be drawn such that their vertices lie on the corners of a unit cube?
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