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In Fig, POS is a line, find x. |
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Answer» From the figure we can write as angles of a straight line, ∠QOP + ∠QOR + ∠ROS = 180° 60° + 4x + 40° = 180° On rearranging we get, 100° + 4x = 180° 4x = 180° – 100° 4x = 80° x = 80°/4 x = 20° |
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