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A comment on Stacking Triangles for Fun and Profit. Parent comment

Re:Stacking Triangles for Fun and Profit by lupire on Thursday April 11, 2024 @11:43AM (#40003429)
Useful angles are the only exact angles that really exist :-)

Everything else is a brutish approximation.

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Re:Stacking Triangles for Fun and Profit by pvg on Thursday April 11, 2024 @12:20PM (#40003877)
Of course, 'useful' and 'brutish' can be stretched a bit. Maths olympiad problem (from right around 5th grade, to boot):

Trisect a 36° angle.

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