Question

circular theorem how to find y​

Answer 1

Answer:

35

Step-by-step explanation:

angle 140 and angle DBC are linear pair so

angle DBC = 40

and triangle DBC is an isosceles triangle

so angle BDC and angle BCD are equal and those equals to 140/2= 70

and the quadrilateral EBCD is cyclic quadrilateral

so angle BED and BCD add up-to 180

so angle BED = 180-70=110

and triangle EBD is also an isosceles triangle

so angle y and angle EBD are equal

so y=(180-110)/2= 70/2=35