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Q8

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Source: — Problem Solving |
Junior | Next Rank: 30 Posts
Posts: 27
Joined: Tue Sep 04, 2007 2:29 pm

TT

by TT » Tue Sep 25, 2007 5:40 pm
I think it should be 6.

Each side of the big square=9
RS + ST=9

ST^2/RS^2=1/4
ST/RS=1/2

Solving the two:
RS=6
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Master | Next Rank: 500 Posts
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by magical cook » Tue Sep 25, 2007 6:00 pm
Thank you - I think I forgot square ST^2/RS^2
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