字典翻译 问答 小学 英语 Acircleisinscribedinatrianglewithsidesoflengthsof8,17,and19.Letthesegmentsdeterminedbythepointoftangencyonthesideoflength8bewandr,withw<r.Findtheratioofwtor.a)3:5b)5:7c)2:3d)1:5e)7:9麻烦另付翻译
问题标题:
Acircleisinscribedinatrianglewithsidesoflengthsof8,17,and19.Letthesegmentsdeterminedbythepointoftangencyonthesideoflength8bewandr,withw<r.Findtheratioofwtor.a)3:5b)5:7c)2:3d)1:5e)7:9麻烦另付翻译
问题描述:

Acircleisinscribedinatrianglewithsidesoflengthsof8,17,and19.Letthesegmentsdeterminedbythepointoftangencyonthesideoflength8be

wandr,withw

邱卫斌回答:
  一个圆内切于三角形,其三边为8,17,19,长为8的边被切点分为两段w,r,求w比r
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