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750 degree is the right answer
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Answer:
870°
Step-by-step explanation:
∠A = ∠C = 70° (opposite angles of a parallelogram)
∠B = ∠D = x (opposite angles of a parallelogram)
∠A + ∠C + ∠B + ∠D = 360° ( Angle sum property)
∠A + ∠A + x + x = 360°
(2×∠A) + (2×x) = 360°
2(∠A + x) = 360°
∠A + x = 180°
70° + x = 180°
x = 180° - 70°
x = 110°
∠B = ∠D = 110°
2∠B + 3∠C + 4∠D
= 2 (110°) + 3 (70°) + 4 (110°)
= 220° + 210° + 440°
= 870°
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