Esteemed reader: Appended to problem #42 is a dialogue highlighting an unsettling outcome of a limited (and limiting) approach to mathematics education.


202. Folded rectangular strip


A rectangular strip of paper is folded over, as shown.  Determine ∠x.


201. Table of integers

In the table are integers that follow a particular rule.  For example, in Row 2 (R2), Column 4 (C4) is the integer 15.

⒜  Determine the integer in Row 1, Column 10.
⒝  For the integer 200, determine its row and column.


200. Five in six

In the diagram, a regular hexagon and a regular pentagon share one side.  Determine ∠①.