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A rectangle with height 4 and width w contains three circles as in the diagram, all tangent to the rectangle and to each other.  What is w?

 

 May 6, 2020
 #1
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Well then the largest circle must have diameter 4, since it's from one side to the other, and the other small ones, being equal, must have 4/2 diameters. 4+2 = 6

 

w = 6.

 

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 May 6, 2020
 #2
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It's not correct!!!

 

w = 5.828427125   wink

Guest May 7, 2020

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