如图,矩形纸片ABCD折叠,使点D与点B重合,点C落在点C′处,折痕为EF,若∠ABE=20°,那么∠EFC′的度数( )
A.20° | B.70° | C.125° | D.55° |
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如图,矩形纸片ABCD折叠,使点D与点B重合,点C落在点C′处,折痕为EF,若∠ABE=20°,那么∠EFC′的度数( )
A.20° | B.70° | C.125° | D.55° |