Answer:
∠ FGD = 150°
Explanation:
In a parallelogram
• consecutive angles are supplementary ( sum to 180° )
∠ GDE and ∠ FGD are consecutive angles , that is
∠ GDE + ∠ FGD = 180°
30° + ∠ FGD = 180° ( subtract 30° from both sides )
∠ FGD = x = 150°
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