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Hence x = 65°, y = 135°
Step-by-step explanation:
/ A = 60°, / ACB + 110° = 180° (Straight line)
/ ACB = 180° - 110° = 70°
So, / ACB + / A + x = 180°
70° + 60° + x = 180°
x = 180° - 130° = 50°
Hence x = 50°
In figure (b), y = 180° - 45° = 135°
x = 180° - 70° - 45° = 65°
So, x = 50° , y = 135°
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