Online Geometry Problem 808: Parallelogram, Perpendicular, Right Triangle, Semicircle Area, Diameter. Level: High School,
SAT Prep, College,
Mathematics Education
The figure below shows a parallelogram ABCD,
DE perpendicular to AB and semicircles of diameters AE, BC and DE. If S1, S2,
and S are the areas of the shaded regions, prove that S1+ S2 =S
