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Question

In the given figure, AOB is a straight line. If ∠AOC + ∠BOD = 95°, then ∠COD = ?
(a) 95°
(b) 85°
(c) 90°
(d) 55°


Solution

(b) 85°

We have :
AOC+BOD+COD=180°   Since AOBis a straight lineAOC+BOD+COD=180°95°+COD=180°COD=85°

Mathematics
RS Aggarwal (2017)
Standard IX

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