+0  
 
-1
276
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avatar+3430 

Help.

NotSoSmart  Mar 31, 2017
 #1
avatar+89806 
+3

"x" will be a radius and it will be the same length as the hypotenuse formed by the right triangle with legs = 7   and (1/2) of the chord length  = (1/2)(12)  = 6

 

So......

 

x = sqrt ( 7^2 + 6^2)  =  sqrt ( 49 + 36)  =  sqrt ( 85) ≈  9.2

 

 

cool cool cool

CPhill  Mar 31, 2017

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