Question

plse solve this sum
plse anyone help me out

Answer 1

here is a complicated proof

Answer 2

just wanna know the following proof is right or wrong


in tringle abd and bdc
ab=bc
ad=dc
and
angle a = angle c
so by SAS property
triangle abd = triangle cbd
hence angle adb = angle cdb
angle adb+angle cdb = 180
angle adb = angle cdb = 90
hence right angle

Answer 3

it was given by @chandanjha

Answer 4

in tringle abd and bdc
ab=bc
ad=dc
how do we know ad= dc ?

this seems to be putting point D on the line AC (a figure would help)
the problem is you don't know if the line AD goes through the point O

it is easy to show that AD where D bisects AC is perpendicular to the line AC
use the proof you just posted, with the reason for ad=dc being "by construction"

but as just noted, you don't know (have not shown) that AD goes through the point O