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sin 30

 Feb 14, 2016
 #1
avatar+118587 
+5

sin 30

 

Draw an equilateral triangle, side length  2 and then cut it in half.

 

Now read the answer off the pic

 

 Feb 14, 2016
 #2
avatar+118587 
0

Thanks Chris    wink

 Feb 14, 2016

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