Sum of Interior Angles of Polygones
Eda Nur Sezer
Look at the relation between sum of angles and number of sides of polygons.
Change n and look at changes in interior angles.
After first step, now look at changes in sum of interior angles.
Finally, try to discover proper formula in order to find sum of interior angles of polygons.
Linear and Quadratic changes along with constraints
Pursuit Paths via Complex Numbers
Discovering the Pythagorean Theorem