Question

two lines ab and CD intersect at point O is AOC is 40 degree find Angle A Angle B and Angle B O C

Answer 1

but aoc is
a vertically opposite angle

Answer 2

angle bod is equal to angle aoc bcos they r Vertically opposite angles
angle aoc + angle aod = 180° bcoz they form a straight angle so angle aod is equal to 140
angle bod is equal to angle aod bcoz they r Vertically opposite angles

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