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A radio transmission tower is 150 feet tall. How long should a guy wire be if it is to be attached 5 feet from
the top and is to make an angle of 20° with the ground? 
a. 159.6 ft

c. 154.3 ft
b. 424.0 ft

d. 438.6 ft

 May 12, 2021
 #1
avatar+32900 
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Remeber   sin = opposite side / hypotenuse in rt   triangles    opposite  side is tower attach point  145   Hypotenuse is what you seek

 

sin (20) =  145 / h         h =   145/ (sin(20) feet = __________ ft             You should finish !  

 May 12, 2021
 #2
avatar+93 
+2

 B  424.0ft

 May 12, 2021

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