+0  
 
-1
753
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avatar+4116 

Help.

 Mar 28, 2017
 #3
avatar+128407 
+1

arcos ( 6/ 19 )   =  71.59°

 

 

200 *  cos ( 9 ° )   =   197.5 m

 

 

 

cool cool cool

 Mar 28, 2017

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