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Junior High
Mathematics
這兩題請教我
Mathematics
Junior High
over 2 yearsago
范程睿
這兩題請教我
如右圖,四邊形ABCD 為正方形,直線L.通過 B點,XELL於E點, CF LL於F點,請回答 A 1幾何證明與應用 D P 5 下列問題: )請完整說明△ABELBCP的理由。 | 若E=12,CF=S,利用(1)的結果,求 EF 的長度。 ₂DABEID BC F4 L 如右圖,四邊形ABCD A 形 BEPG 均為正方形,請 回答下列問題: (1)請完整发明LABGE B LCBE 的理由。 (2)若∠AGB=110°,利用(1) 的結果,求∠CEF 的度數。 - 258 - E
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