Find that Angle! (GoGeometry Action 144)
Creation of this applet was inspired by a tweet posted by Antonio Gutierrez (GoGeometry).
Geometry Students:
Take a look at the applet below. What is the measure of the pink angle?
This problem may look difficult at first, but it's actually quite simple.
As a hint, try drawing this diagram on a separate sheet of paper.
Yet on this paper, draw the ENTIRE CIRCLE (of which this 1/4 circle is a part).
Any insight?
See if you can figure this out WITHOUT sliding the "Solution" slider.