

Infographic Geometry Problem 1057: Triangle,
Area, Circle with Perpendicular Diameters, Tangent,
Secant. Level: High School, College, Mathematics Education
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The figure below shows a circle of center O with
diameter AB perpendicular to diameter CD, and CE tangent at E. Secant
EFA intersects OC at G and BG extended intersects circle O at H. If CH =
5, find the area of triangle BEF.







