Question

the measure of an angle is given in the following figure find the other angle

Answer 1

angle boc = 170

angle dob = 10

angle apc = 10

Answer 2

ANGLE boc = 170 (since vertically opposite angles)

ANGLE dob = ANGLE  aoc ( assume x)

dob + aoc = 360 - 170 + 170

2x= 20

x=10

Therefore : ANGLE  aoc = 10

                   ANGLE  dob= 10