இருபதுமுக முக்கோணகம் (Tamil Wikipedia)

Analysis of information sources in references of the Wikipedia article "இருபதுமுக முக்கோணகம்" in Tamil language version.

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1books.google.com

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6^th place

books.google.com

MacLean 2007, ப. 43–44; Coxeter 1973, Table I(i), pp. 292–293. See column " ${}_{1}\!\mathrm {R} /\ell$ ", where ${}_{1}\!\mathrm {R}$ is Coxeter's notation for the midradius, also noting that Coxeter uses $2\ell$ as the edge length (see p. 2).