Question

如圖，△ABC平移到△EFG，則圖中共有平行線(xiàn)

1. A.
   3對(duì)
2. B.
   5對(duì)
3. C.
   6對(duì)
4. D.
   7對(duì)

Answer 1

C
試題分析：根據(jù)經(jīng)過(guò)平移，對(duì)應(yīng)點(diǎn)所連的線(xiàn)段平行且相等，對(duì)應(yīng)線(xiàn)段平行且相等作答．
∵△ABC平移得到△EFG，A的對(duì)應(yīng)點(diǎn)為E，B的對(duì)應(yīng)點(diǎn)為F，C的對(duì)應(yīng)點(diǎn)為G，
∴AB∥EF，BC∥FG，AC∥EG，AE∥CG，AE∥BF，BF∥CG，共6對(duì)．
故選C．
考點(diǎn)：本題考查了平移的性質(zhì)
點(diǎn)評(píng)：平移的基本性質(zhì)是：①平移不改變圖形的形狀和大小；②經(jīng)過(guò)平移，對(duì)應(yīng)點(diǎn)所連的線(xiàn)段平行且相等，對(duì)應(yīng)線(xiàn)段平行且相等，對(duì)應(yīng)角相等．