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105.32 The side-angle duality in geometry: a direct proof of sufficiency of a cyclic quadrilateral theorem

Published online by Cambridge University Press:  21 June 2021

Mario Dalcín
Mario Dalcín*
Affiliation:
Obligado 1173, Ap. 3, CP 11314, Montevideo, Uruguay. e-mail: mdalcin00@gmail.com
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Information
The Mathematical Gazette , Volume 105 , Issue 563 , July 2021 , pp. 329 - 331
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Copyright
© Mathematical Association 2021

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References

de Villiers, M., An interesting duality in geometry, AMESA-2 Proceedings, Peninsula Technikon (1-5 July 1996) pp. 345–350, available at http://mzone.mweb.co.za/residents/profmd/amesa96.pdf Google Scholar
Altshiller-Court, N., College geometry, Barnes & Nobel (1952). New edition by Dover Publications (2007).Google Scholar