Online Geometry Problems: Circle Area

Online Geometry Problem 708: Circle, Tangent, Intersecting, Lune, Area, Diameter. Level: High School, Honors Geometry, College, Mathematics Education

The circles of diameters AB and CD are tangent at E. If circle O passes through points A,B,C,D, prove that the area of the yellow shaded region is equal to the area of the blue shaded region.

Circle, Tangent, Intersecting, Area, Lunes

See also:
GeoGebra of problem 708

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