三角形内角平行线定理证明三角形的内角平分线分对边所得的两条线段和这个角的两边成比例.如果在三角形ABC中,AD是角BAC的角平分线,证明:BD/DC=AB/AC.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 07:58:44
![三角形内角平行线定理证明三角形的内角平分线分对边所得的两条线段和这个角的两边成比例.如果在三角形ABC中,AD是角BAC的角平分线,证明:BD/DC=AB/AC.](/uploads/image/z/5572338-42-8.jpg?t=%E4%B8%89%E8%A7%92%E5%BD%A2%E5%86%85%E8%A7%92%E5%B9%B3%E8%A1%8C%E7%BA%BF%E5%AE%9A%E7%90%86%E8%AF%81%E6%98%8E%E4%B8%89%E8%A7%92%E5%BD%A2%E7%9A%84%E5%86%85%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%E5%88%86%E5%AF%B9%E8%BE%B9%E6%89%80%E5%BE%97%E7%9A%84%E4%B8%A4%E6%9D%A1%E7%BA%BF%E6%AE%B5%E5%92%8C%E8%BF%99%E4%B8%AA%E8%A7%92%E7%9A%84%E4%B8%A4%E8%BE%B9%E6%88%90%E6%AF%94%E4%BE%8B.%E5%A6%82%E6%9E%9C%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2CAD%E6%98%AF%E8%A7%92BAC%E7%9A%84%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%2C%E8%AF%81%E6%98%8E%EF%BC%9ABD%2FDC%3DAB%2FAC.)
xTMn@AVf
Hnr j/`PBMHC(AC]ڙYqqIXV7{ߛ}3\{XvDPv9MĠT4bp
;CY V8.3}hI!tk|n[|.ȏM]ʺ%̨Ԣ$v+k۱r$͓p&e|E)2nM;uyPb/ e>,E9TΖ:2t} Ew2musj&y7CPMٹC\OO&2!~g!D0`9,2
"*ZqO>fv2).WF
4Tr /ARz"ߘy]d/7v:&΅WtGi$