A) (i) only
B) (ii), (iii) and (iv) only
C) (i) and (iii)
D) (ii) and (iv) only
Correct Answer: B
Solution :
In \[\Delta ABC,AB=AC\Rightarrow \angle B=\angle C\] \[AB=BC\Rightarrow \angle B=\angle C\] \[AD\bot BC\Rightarrow BD=DC\] In \[\Delta \Alpha \Beta D\]and \[\Delta \Alpha CD,\] \[AB=AC\](side) AD is the common side \[\angle DAB=\angle DAC\] (Since AD bisects\[\angle A.\]) \[\therefore \,\Delta ABD\cong \Delta ACD\](By A.S.A criterion)You need to login to perform this action.
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