✨ 最佳解答 ✨
AD = AE => ∠ADE = ∠AED、AB = AE => ∠ABE = ∠AEB
假設依如圖所示,
∠DAE = (180 - 2x - 2y)
∠BAE = (180 - 2x - 2y) + 90 = 180 - 2y
2x = 90, x = 45
✨ 最佳解答 ✨
AD = AE => ∠ADE = ∠AED、AB = AE => ∠ABE = ∠AEB
假設依如圖所示,
∠DAE = (180 - 2x - 2y)
∠BAE = (180 - 2x - 2y) + 90 = 180 - 2y
2x = 90, x = 45
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