60°
10. In the given figure,
AB II DE. Find the value
6
of x.
40°
D answers is 100
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2
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Where is the figure? Please provide the figure along with the question.
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0
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(i) 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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