Can you make a tetrahedron whose faces all have the same perimeter?
Stage: 4 and 5 Challenge Level:
You have to create your own equations here. Choose letters for the
total sum, and for the number of coins each person grabbed. Then
express the given information in equations and finally solve your
set of simultaneous equations.
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the
NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to
embed rich mathematical tasks into everyday classroom practice. More information on many of our other activities
can be found here.