如图在下列括号内填理由
∵AC平分∠DAB(已知)∴∠1=∠2()
∵∠1=∠2(已知)∴∠2=∠3( )
∴DC平行AB( )
人气:348 ℃ 时间:2020-05-19 07:12:21
解答
没有图,只能猜.
∵AC平分∠DAB(已知)
∴∠1=∠2( 角平分线性质 )
∵∠1=∠2(已知)
∴∠2=∠3( 等量代换 )
∴DC平行AB( 同位角或者内错角相等,;两直线平行 )
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