Question

question 12

pls answer it. it's urgent ​

Answer 1

in triangle ABC and ACD bc=ac=ad....it means ABC and ACD are isosceles triangles....

soo angle CAB=angle CBA= angle ACD= angle ADC..

exterior angle of a triangle= sum of opposite interior angles of a triangle

angle EAD=angle ABC + angle ADC

we have angle ADC= angle ABC

soo

EAD=2ADC

75=2y

37.5=y

there angle y=37.5°

I hope this will be helpful to u

thank u