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  • This answer illustrates a typical use case, when "thinking-imperative programmer" ask a question about functional language... The suggested solution: ask in top level. Commented Jul 26, 2015 at 11:24
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    "Similar" has a specific geometric/triangle technical meaning, that via combining zoom, rotate, slide and/or flip an object exactly covers another. But you use it to mean everyday "close in shape". Your expert knows they the start & end shapes are not technically similar but merely "close in shape". So it would be better if you used "close in shape" & not "similar". What people assume is that there are 2 small & 1 large technically similar triangles & the puzzle arises from the fact that there are only 2 triangles--the small ones--& they're not technically similar. Commented Jun 21, 2022 at 5:33