Question

ADandBCare equal------------------------------AB..​

Answer 1

Step-by-step explanation:

IN Triangle AOD and Triangle BOC

AD = BC ( given)

angle DAO = angle CBO ( Each 90 degree)

angle AOD = angle COB ( vertically opposite angles)

Therefore, triangle AOD is congruent to triangle BOC

Therefore, AO = BO (CPCT)

Therefore, CD bisects AB.

HENCE PROVED

Answer 2

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