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ABCD is a unit square.  E is the midpoint of CD.  What is the radius of the incircle?

 

 May 10, 2020
 #1
avatar+30609 
+3

As follows:

 

 May 10, 2020
 #2
avatar+12294 
+1

ABCD is a unit square.  E is the midpoint of CD.  What is the radius of the incircle?

laugh

 May 10, 2020
edited by Omi67  May 10, 2020
 #3
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Omi67: You made a typo in this calculation:

 

(2/3) / [1 + 1/3sqrt(5) + 2/3sqrt(2) ] =0.248

Guest May 10, 2020

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