Question

how is the answer 40​

Answer 1

Step-by-step explanation:

here

angle AOC + angle BOE = 70°

and

angle AOC + angle BOE + angle COE = 180°

angle COE = 110°

ngle COE = 110°it is given that angle BOD = 40°

ngle COE = 110°it is given that angle BOD = 40°so by vertically opposite angle AOC = 40

ngle COE = 110°it is given that angle BOD = 40°so by vertically opposite angle AOC = 40and

ngle COE = 110°it is given that angle BOD = 40°so by vertically opposite angle AOC = 40and angle AOC + angle BOE = 70

ngle COE = 110°it is given that angle BOD = 40°so by vertically opposite angle AOC = 40and angle AOC + angle BOE = 7040°+angle BOE = 70

angle BOE = 30°

MOST PROBABLY YOUR BOOKISH ANSWER IS WRONG

Answer 2

no dear it will be 30....

as described above