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Geometry Problem 452: Triangle, Circle, Tangent, Proportional Segments

The figure shows a triangle ABC and a circle O tangent to AB, BC, and EF at the points A, D, and E, respectively. If AB = c, EF = d, and CF = x, prove that Formula to prove.

Circle, Triangle,Tangent





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Circular segments

Proposed Problem 453.
Intersecting Circles, Tangent, Circular Segment, Congruence, Area.


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Proposed Problem 451.
Triangle, Median, Congruence, Proportional Segments.


Triangle, Median, Cevian

Proposed Problem 450.
Triangle, Median, Cevian, Congruence, Proportional Segments.


Circle, Diameter, Sagitta

Proposed Problem 449.
Congruent Tangent Circles, Diameter, Sagitta, Arc, Perpendicular, Chord.


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