Question

plz solve this with process and don't type rubbish it's urgent​

Answer 1

Answer:

230

Step-by-step explanation:

angle OAB=50

there fore...

angle DOB=180-angleOAB

=180-50

=130

x=130

at triangle OAB

angle DOB+angle AOB=180

130+angle AOB=180

angle AOB=50

there fore angle ABO=80

angle DCB+angle ABO=180

angle DCB+80=180

angle DCB=100

y=100

there fore

x+y=130+100

=230