AMC 10B 2008 Problem 24

Past Contests AMC 10 AMC 10B - 2008
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1

Quadrilateral A B C D has A B=B C=C D, \angle A B C=70^{\circ}, and \angle B C D=170^{\circ}. What is the degree measure of \angle B A D ?

Answer Choices
A. 75
B. 80
C. 85
D. 90
E. 95