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joey is putting up an antenna. at the 30 foot mark, he attaches a 50 foot guy wire. what angle does the guy wire form with the antenna.

 Jan 20, 2015

Best Answer 

 #1
avatar+130536 
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We know the adjacent side (30) and the hypoteneuse (50).....and the trig function that relates these two is the cosine....so we have

cosΘ = 30 / 50 

So, using the inverse sine to find Θ, we have

cos-1 (30/50) = Θ = about 53.13°

 

 Jan 20, 2015
 #1
avatar+130536 
+5
Best Answer

We know the adjacent side (30) and the hypoteneuse (50).....and the trig function that relates these two is the cosine....so we have

cosΘ = 30 / 50 

So, using the inverse sine to find Θ, we have

cos-1 (30/50) = Θ = about 53.13°

 

CPhill Jan 20, 2015

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