In a triangle ABC, the side BC is extended up to D such that CD = AC. If ∠BAD = 109º and ∠ACB = 72º, then the value of ∠ABC is

In a triangle ABC, the side BC is extended up to D such that CD = AC.

1.	In a triangle ABC, the side BC is extended up to D such that CD = AC. If ∠BAD = 109º and ∠ACB = 72º, then the value of ∠ABC is
A.	35º
B.	45º
C.	40º
D.	None of the above
Answer» B. 45º

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In a triangle ABC, the side BC is extended up to D such that CD = AC. If ∠BAD = 109º and ∠ACB = 72º, then the value of ∠ABC is

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