Q17 of 153 Page 148

In the given figure, straight lines AB and CD intersect at O. If ∠AOC + ∠BOD = 130°, then ∠AOD = ?

AC and BD intersect at O.



As we know that sum of all angles on a straight line is 180o.


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In the adjoining figure, AOB is a straight line. If x : y : z = 4 : 5 : 6, then y = ?

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In the given figure, straight lines AB and CD intersect at O. If ∠AOC = ϕ, ∠BOC = θ and θ = 3θ, then θ = ?

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In the given figure AB is a mirror, PQ is the incident ray and QR is the reflected ray. If ∠PQR = 108°, then ∠AQP = ?

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In the given figure AB || CD. If ∠OAB = 124°, ∠OCD = 136°, then ∠AOC = ?