Question

Plz solve the que..........
......

Answer 1

hey mate here is your answer

let angle ADC equals to p and
angle ABC equals to y

80 degree + angle p is equal to 180 degree (linear pair)
that's implies angle p is equal 100 degree
since ABCD is a cyclic quadrilateral angle ADC + angle abc equal to 180 degree and
angle ADC equal to 100 degree so
100 degree + angle Y is equal to 180 degree
so angle Y is equal to 80 degree
now angle X the single Y equal to 180 linear pair
so angle x equals to100 degree

hope this helps u

if you need some help you can ask me

thanks

#puja