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Geometry Problem 5 with Solution: Triangle, Angles, Congruence, Isosceles. Level: High School, College, Math Education

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In the figure below, AD = BC, BD = CD, angle A = 3x, and angle DBC = 2x. Find x. Try to use elementary geometry (Euclid's Elements.)
 

Triangle, Angles
 

See solution below
 

See also: Art 01


 

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Last updated: Sep 19, 2014


Geometry Problem 5 Solution(s)