Problem 423: Triangle, 30, 40 degree, Angle,
Congruence
Online Math. Activate Flash plug-in or JavaScript and reload to view problem
about: Triangle, 30, 40 degree, Angle, Congruence, Online Learning.
The figure shows a triangle ABC with angles
A and C equal to 30 and 40 degrees, respectively. If AD = BC, find the
measure of angle BDC.
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