Question

Linear pair of angles are AOC and BOC then AOB + BOC

Answer 1

Explanation:

∠AOC and ∠BOC form a linear pair.

∠AOC=a and ∠BOC=b

∴ a+b=180

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[ Linear pair ] ------ ( 1 )

⇒ a−2b=30

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----- ( 2 )

Subtracting equation ( 2 ) from ( 1 ) we get,

⇒ 3b=150

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⇒ b=50

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Substituting value of b in ( 1 ) we get,

⇒ a+50

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=180

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∴ a=130

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just like this que but different