in the fig. twice of x is 30 degree less than y then the values of x and y are respectively given OB and OA are opposite rays
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Two rays OA and OB, with a common end-point O, form an angle AOB that is represented as ∠AOB.
(ii) The interior of an angle is the set of all points in its plane, which lie on the same side of OA as B and also on the same side of OB as A.
(iii) An angle greater than 90° but less than 180° is called an obtuse angle.
(iv) An angle greater than 180° but less than 360° is called a reflex angle.
(v) Two angles are said to be complementary if the sum of their measures is 90°.
(vi) Two angles are said to be supplementary if the sum of their measures is 180°
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50 130
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the correct answer is 50
130
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