For triangle ABC, the side BC is extended to D so that CD = AC. If ∠BAD = 109° and ∠ACB = 72° , then the value of ∠ABC is

For triangle ABC, the side BC is extended to D so that CD = AC. If �

1.	For triangle ABC, the side BC is extended to D so that CD = AC. If ∠BAD = 109° and ∠ACB = 72° , then the value of ∠ABC is
A.	35°
B.	45°
C.	73°
D.	72°
Answer» B. 45°

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For triangle ABC, the side BC is extended to D so that CD = AC. If ∠BAD = 109° and ∠ACB = 72° , then the value of ∠ABC is

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