

Problem 526: Equilateral Triangle, Chord, Measurement. Level: High School, SAT Prep, College
Geometry

The figure shows an
equilateral triangle ABC inscribed in a circle. A chord AD meets
BC at E. If DE = d, DB = e, and
DC = f. Prove that .
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or solution.



See Also:






Problem 527.
Circle, Tangent, Secant, Chord, Midpoint, Measurement. 


Problem 525.
Circles, Diameter, Tangent, Radius, Congruence, Measurement. 


Problem 524.
Circle, Equilateral Triangles, Midpoint, Side, Measurement. 


Problem 523.
Tangent Circles, Diameter Perpendicular, Collinearity. 






