Question

pls do question no.6

Answer 1

Hey!
solve in fig...
Hope it helps you

Answer 2

by cyclic quadrilateral theorem
angle A+ angle C=180
angleA=180-120
angleA=60
so,
angleDAO=30
similarly,
angleADO=110/2=55
so by triangle theorem
AOD=180-(55+30)
=180-85
=95
Hope you get it