Question

Find the value of x and y.

Answer 1

angle dob+angle dbo+ angle odb=180
60+85+ angle dob=180
angle dob = 180-145=35
angle dob=angle aoc=35 (vert. opp. angle)
angle aoc+angle aco+angle oac=180
55+35+angle aco=180
angle aco= 180-90=90

Answer 2

Heyy
Here is ur answer..
X=180-85+60

=180-145
= 35°
y=180-<COA+55
<COA=35°(Vertically opposite angles are equal )
y =180-35+55
=180-90
=90°
Hope it helps u:)