What is the smallest number of triangles you can break one triangle
in to?<br />
You could print out <a href="/content/00/07/six1/CutItOutTriangles.doc">this sheet of
triangles</a> or use <a href="http://www1.curriculum.edu.au/maths300/m300bits/000dotis.htm">isometric
dotty paper</a>.<br />