30-10-2017
Mathematics

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BrainIess BrainIess

30-10-2017

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3x + (5x + 36°) = 180° (Corresponding ∠s)
8x + 36° = 180°
8x = 180° - 36°
8x = 144°
x = 144° ÷ 8 = 18°

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