My understanding is that rhombus and diamond are equivalent. As you point out, could also rightly be called "square".
See the Cambridge dictionary for rhombus[1]: "a flat shape which has four sides that are all of equal length" or the Merriam Webster for rhombus[2]: "a parallelogram with four equal sides and sometimes one with no right angles" It seems basically that the angles property is optional. This actually briefly mention in the Wikipedia article[3]: "Every rhombus is a parallelogram, and a rhombus with right angles is a square. (Euclid's original definition and some English dictionaries' definition of rhombus excludes squares, but modern mathematicians prefer the inclusive definition.)" For me the best solution is to find a well-know shape that cannot be confused with the others, like for example a Pentagon. Regards, Jordi, [1] http://dictionary.cambridge.org/dictionary/british/rhombus [2] http://www.merriam-webster.com/dictionary/rhombus [3] http://en.wikipedia.org/wiki/Rhombus -- a perfect square is called "diamond" https://bugs.launchpad.net/bugs/581429 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
