A visual proof of the area of a trapezium revisited

Yiu Kwong MAN

Research output: Contribution to journalArticlespeer-review


In the July 2009 issue of Learning and Teaching Mathematics (see [1]), I described a proof without words of the area of a trapezium. Unfortunately, due to the given diagram being a special, symmetrical case rather than a general trapezium, some readers might have misinterpreted that the proof was only valid for an isosceles trapezium (see [2]). To clarify this point, we can refer to the visual proofs for two general trapeziums below. Copyright © 2012 Association for Mathematics Education of South Africa (AMESA).
Original languageEnglish
Pages (from-to)19
JournalLearning and Teaching Mathematics
Issue number12
Publication statusPublished - Jun 2012


Man, Y.-K. (2012). A visual proof of the area of a trapezium revisited. Learning and Teaching Mathematics, 2012(12), 19.


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