How to Find Areas of Shaded Regions

The problem of finding the area of a shaded region is normally found in geometry courses and it also appears in standardized tests such as the SAT and the GMAT.

Below are some examples of this type of problem.

• http://www.dominatethegmat.com/2012/04/gmat-geometry-area-of-shaded-regions/
  
• http://www.mathcaptain.com/geometry/area-of-a-circle.html
  
• http://www.onlinemathlearning.com/area-shaded-region.html
  
• http://www.mcs.alma.edu/hsmathchallenge/Solutions/0607%20solutions/sol8/april07soln.html