Question

answer it of class 7 ....​

Answer 1

Answer:

answer number 5

in aob and doc

cod=bod ( vertically opposite angle )

ob=oc

abo=dco ( each 90 degree)

then in aob and doc congruent

7. in triangle abd and acd

ad =ad

adb=adc

bd=cd

abd and acd congruent proved

by congruency ab =ac