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求解精1.(2)🙏🙏

4-1 平行線 65 O精熟練習。 A 1 如右圖,四邊形ABCD 中,∠A=70°,∠C=110°,將右下角 向內摺出一入EFD',使DE || BC,DF | AB。則: (1) ZCED'=_10_1 · ZAFD'= LI % B 90 110 度。 0 D! 90 B L2 Lui o WA 90° CED (2) ZEFD= 度,ZFED = 度。 L) L4
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