Showing that the line segments joining centres of squares on opposite sides of a quadrilateral are perpendicular lines and of equal length
written in JAVA, but even if you don't have JAVA installed you can
just click below to
Note: This option does not require any plugin and should work on smartphones as well as computers.
If you do
have Java installed and supported by your browser then you can also [Run
the Applet using JAVA]
Note: Many browsers no longer support Java directly but if you want to see how the applet looks in Java, then one option is to use Internet Explorer or the IETab plugin
Note to Developers: The applet linked to above was built with the GeX component library which is intended to support the quick construction of demonstration tools for mathematics instruction.
Copyright 1996-2020 by Alan Cooper - page last modified on 1 Sept 2020