Question

pls ans this question ​

Answer 1

Answer:

In ∆ ADC

Given, AD=BA

So, < ABD= <ADB= y

<DAB+<ABD+<ADB= 180° ( angle sum property of∆)

=>72°+y+y= 180°

=> 2y= 180°-72°

=> y= 54°

<ADB=< DBC

54°= x

Therefore, x=54°