Lines and intersect at such that .

MATHEMATICS · Multi-part · CBSE · Mathematics · Lines and Angles · Lines and Angles

Problem

Lines ABAB and CDCD intersect at OO such that ∠AOC:∠COB=7:2\angle AOC : \angle COB = 7:2. (i) Find the measures of ∠AOC\angle AOC and ∠COB\angle COB. (ii) Hence determine the measures of the other two angles formed at OO.

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