Question

find angle COB and angle DOC
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Answer 1

Answer:

COB = 50

DOC = 45

Step-by-step explanation:

First consider the angle as supplementary , then consider the right angle ( the straight line in between of it ) , so lets subtract 40 through the 90 ° angle because of the line in between . it comes 50 .

Now the °DOC , only two parts of ninety are left on the LHS of the partition and that partition is 90 degree so just divide 90 by 2, it comes 45 as an answer .