Question

If line AB and CD intersect each other at O.If ACD:DOB=4:5 find COB
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Answer 1

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Step-by-step explanation:

1)Two rays OA and OB, with a common end-point O, form an angle AOB that is represented as ∠AOB

2)The interior of an angle is the set of all points in its plane, which lie on the same side of OA as B and also on the same side of OB as A

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