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What is BC to the nearest tenth?

 Mar 25, 2020
 #1
avatar+111321 
+2

We can use the Law of Cosines

 

BC   =  √ [ 13^2  + 15^2  - 2(13 * 15)  cos (95°) ]   ≈   20.7

 

 

cool cool cool

 Mar 26, 2020

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