Abstract
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 language | English |
|---|---|
| Pages (from-to) | 19 |
| Journal | Learning and Teaching Mathematics |
| Volume | 2012 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Jun 2012 |