A radio transmission tower is 150 feet tall. How long should a wire be if it is to be attached 5 feet from the top and is to make an angle of 20° with the ground? Give your answer to the nearest tenth of a foot.
AC = 145
sin 20° = AC / AB
AB = AC / sin 20°
AB = 145 / 0.342 = 424
ANSWER: 424 feet
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