PD和PE有pd是什么意思分别

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求翻译:请PE和PD尽可能想办法降低此固定扶手的TP(不是仅仅做低面价,只降面价不降TP对销售没有意义)。是什么意思?
请PE和PD尽可能想办法降低此固定扶手的TP(不是仅仅做低面价,只降面价不降TP对销售没有意义)。
问题补充:
Please PE and PD as much as possible ways to reduce the fixed arm of TP (not only do low-side price, only price does not fall face down on the sale of TP does not make sense).
Please PE and PD possible, seek to reduce the fixed armrests TP (Not only do low prices, reduced-price to sales have not dropped TP meaningless).
Invites PE and PD as far as possible tries to find solution to reduce this fixed arm rest TP (makes low face value merely, only falls face value not to fall TP not to have significance to sale).
PE and PD as far as possible to find ways to reduce this hand rails of TP (not just low prices, falling only TP price does not drop on sales doesn't make sense).
PE and PD as far as possible to find ways to reduce this hand rails of TP (not just low prices, falling only TP price does not drop on sales doesn't make sense).
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年级:初三
科目:数学
问题名称:
如图 点P是正方形ABCD边AB上一点(不与点A,B重合),连接PD并将线段PD饶点P顺时针方向旋转90°得到线段PE,PE交边BC于点F,连接BE,DF.
如图 点P是正方形ABCD边AB上一点(不与点A,B重合),连接PD并将线段PD饶点P顺时针方向旋转90°得到线段PE,PE交边BC于点F,连接BE,DF
(2)求∠CBE的度数;
(3)当AP/AB的值为多少时,△PFD∽△BFP?并说明理由。
收到的回答: 1条
teacher083
解:过点E作EQ⊥AB交AB的延长线于点Q,则∠EQP=∠A=90°,
又∵∠ADP=∠EPB,PD=PE,
∴△PAD≌△EQP,
∴EQ=AP,AD=AB=PQ,
∴AP=EQ=BQ,
∴∠CBE=∠EBQ=45°;
(3)解:当AP/AB=1/2
时,△PFD∽△BFP,理由为:
设AD=AB=a,则AP=PB=1/2a,
∴BF=BPoAP/AD=1/4a,
∴PD=√AD2+AP2=√5/2a,PF=√PB2+BF2=√5/4a,
∴PB/PD=BF/PF=√5/5,
又∵∠DPF=∠PBF=90°,
∴△PFD∽△BFP.
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