use of sine and cosine table:
Design of this applet is based on teaching ideas from a group of teachers, explained in an Edumath article:
[url]http://www.hkame.org.hk/html/modules/tinyd2/content/Edumath/v21/07ChikMF_trigo.pdf[/url]
A simple table is used, instead of a calculator, for early stage of understanding what a set of ratios of sides can help in finding lengths of triangles, before formally introducing new symbols, notations, calculator keys, etc.
Method of generating random triangles in GeoGebra is illustrated in this video:
[url]http://youtu.be/XVSzMrPSA_Y[/url]
