# Geometry Problem 1339: Circle, Diameter, Tangent, Secant, Parallelogram. Math Infographic.

As shown in the figure below, EA is tangent to a circle of center O with
diameter AB at A and ECD is a secant. BC and BD cut EO at F and G,
respectively. Prove that AFBG is a a parallelogram.

*This entry contributed by Peter Tran*.

See solution below

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Sketch and typography of problem 1339

See solution below