Prof. S. Brick Math 201
Fall ’02 Elem. Ed. Math I; Quiz 11 section 2
0. Print your name:
1. describe two interesting facts about the M¨obius strip.
2. Using the sums of angles of a triangle, explain the difference between planar geometry
(aka flat or zero curvature), spherical geometry (aka positively curved) and hyperbolic
geometry (aka negatively curved).
3. How many degrees is π
4radians ?
