Prof. S. Brick Math 202
Spring’06 Elem Ed Math II Exam 1 section 101
Print your name:
Show all of your work, and explain your reasoning. Do not use any crude ap-
proximations for π. No calculators allowed and no calculator-type of calculations
are necessary.
1. In words, define the following concepts: convex region, simple closed curve, and scalene
triangle. (You need not define what a region is, what a curve is, or what a triangle is.)
2. Explain what a net is. Then draw a net for the tetrahedron.
3. Give a mnemonic for π(for more than 5 digits) and explain how it works.
