- Angle Angle Angle (geometric proof)
- Abbreviation: AAA
Универсальный русско-английский словарь. Академик.ру. 2011.
Angle Angle Angle (geometric proof)
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Angle trisection — The problem of trisecting the angle is a classic problem of compass and straightedge constructions of ancient Greek mathematics.Two tools are allowed # An un marked straightedge, and # a compass, Problem: construct an angle one third a given… … Wikipedia
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Stallings theorem about ends of groups — In the mathematical subject of group theory, the Stallings theorem about ends of groups states that a finitely generated group G has more than one end if and only if the group G admits a nontrivial decomposition as an amalgamated free product or… … Wikipedia
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