Question

填空题 1．如图2-24，(1)∠BAD与∠CDA是直线_____和______被_____所截，构成的同旁内角． (2)∠1和∠2是直

Answer 1

(1)∠BAD与∠CDA是直线_AB和____CD__被___AD__所截，构成的同旁内角．

(2)∠1和∠2是直线__BC___和_AD___被__AC___所截，构成的内错角．

(3)∠3和∠4是直线_AB__和__DC__被___AC____所截，构成的内错角．

(4)∠DCE与∠ABC是直线___AB___和_CD__被__BE_所截，构成的同位角．

Answer 2

(1)∠BAD与∠CDA是直线AB和直线CD被直线AD所截，构成的同旁内角．
(2)∠1和∠2是直线AD和直线BE被直线AC所截，构成的内错角。