Math Geometry Problems, Online Education


 Problem 192. Circle, Diameter, Chord, Perpendicular, Triangle, Area

In the figure below, AB is the diameter of a circle and CD is a chord. Lines CC', DD' and BF are perpendicular to AB. BB' is perpendicular to CD. B and B' are the centers of arcs D'F and BE respectively. Prove that triangles BB'E and BC'F are equal in area.
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Elearning 192 Circle Diameter Chord



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