OG11-綠DS87

Kath1985 · 发表于 2010-3-30 15:35:03

[attachimg=481,296]76379[/attachimg]
In the figure above, segmentsRSandTUrepresent two positions of the same ladder leaning against the side SV of a wall.
The length of TV is how much greater than the length of RV?

(1) The length of TU is 10 meters
(2) The length of RV is 5 meters

本題OG的答案是D

不懂的是怎麼可能只給TU長度就能知 TV-RV呢 ?

tonyweng · 发表于 2010-3-30 17:23:36

TU和SR是相等的，因为是same ladder

Kath1985 · 发表于 2010-3-30 20:56:33

哎原來是這樣哈哈謝謝TONYWNEG ^ _____________________________ ^

OG11-綠DS87

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