प्लीज गिव मी आंसर फॉर द इंपॉर्टेंट
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linear pair of angles
in figure first
(angle5,6),(6,7),(7,8)(8,5),(9,10),(10,11),(11,12),(12,9),(1,2),(2,3),(3,4)(1,4)
vertically opposite angles
(angle5,7),(angle6,8)(angle9,11),(angle 10,12),(angle 1,3),(angle 4,2)
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