

Online Geometry
Problem 460: Circle, Tangent, Perpendicular, Radius, Distance, Measurement

The figure shows a circle O with the radius
OA perpendicular to radius OB. Line CD is tangent to circle O at E. AF
and BG are perpendicular to CD. If OA = x, AF = a, and BG = b, prove
that
.



More Problems:



Proposed Problem 461.
Three Circles, Tangent, Right Angle, Center, Distance, Measurement. 


Proposed Problem 459.
Right triangle, Squares, Distance, Measurement. 


Proposed Problem 458.
Square, Semicircle, Circular Sector, Internal Common Tangent,
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Proposed Problem 457.
Triangle, First Brocard Point, Congruent angles, Circle, Circumradius. 









