Two randomizable worksheets are included in this Excel spreadsheet. One worksheet is based on the metric units of measurement (mm, cm, m, km) and the other is based on the imperial systems (inch, ft, mi).
Both worksheets can be randomised by pressing F9 on your keyboard and work with all versions of Excel since 2010 (I am not sure about earlier versions).
Solutions have also been included.
Margins may need to be adjusted to ensure all triangles and figures fit on a single page.