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45° +25° +z = 180°
70° + z = 180°
z = 110°
z + y = 180° ( linear pair of angles )
110° + y = 180°
y = 70°
x + y +80° =180°
x + 70° +80° = 180°
x + 150 ° = 180°
x = 30°
70° + z = 180°
z = 110°
z + y = 180° ( linear pair of angles )
110° + y = 180°
y = 70°
x + y +80° =180°
x + 70° +80° = 180°
x + 150 ° = 180°
x = 30°
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