What are the three pairs of equal parts?
A) \[\angle ADB=\angle CDB,\angle ABD=\angle CBD;\,\,BD=BD\]
B) \[AD=AB,\text{ }DC=CB,\text{ }BD=BD\]
C) \[AB=CD,AD=BC,BD=BD\]
D) \[\angle ADB=\angle CDB,\angle ABD=\angle CBD;\,\,\angle DAB=\angle DBC\]
Correct Answer: A
Solution :
Corresponding sides in \[\Delta ABD\] and\[\Delta CBD\].
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