Interactive training in mathematics on PC.Basic Math is an interactive application - something you miss in these screen dumps.
These pictures are only samples from a tutorial sequence. Scroll down...
Triangles, Angle sum of triangles
Similar shaped triangles, Isosceles triangles
Equilateral triangles, Right-angled triangles
Sine, Cosine and Tangent
Addition Method, The area statement
Content
Similar shaped triangles
The Sine function
Using the Sine function
Exercises