Answer:
x = 11
Measure of angle FDG = 31°
Explanation:
2x + 13 = 5x - 20 because these two angles are alternate
13 + 20 = 5x - 2x
33 = 3x divide both sides by 3
11 = x
Measure of angle FDG ➡ 5x - 20 = 5 × 11 - 20 = 31°
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