Stage: 4 Challenge Level:
This is initially an exercise in "de-construction" to enable
The first calculation may involve a little algebra to rearrange the
familiar area formula or substitution and solving the
Either way it is necessary to establish the radius which will give
the correct area.
Marking off the six arcs around a circle circumference is an
important formative experience.
The student needs to check that they understand how this "works",
how the process amounts to six equilateral triangles.