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Yet more characterisations of parallelograms
Published online by Cambridge University Press: 03 July 2023
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This article, like our previous one [1], combines known and new characterisations of parallelograms. Both can be thought of as additions to Martin Josefsson’s series on ‘characterisations of’ and ‘properties of’ various types of quadrilaterals – a series that does not include parallelograms. Josefsson’s publications can be found listed in [2], [3] and [4]. For the importance of characterisations in geometry, see [5].
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- © The Authors, 2023. Published by Cambridge University Press on behalf of The Mathematical Association