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A telephone pole 40 feet high is to be anchored with a guy wire from its center, and the guy is to make an angle of 45° with the ground. Allowing 2 extra feet for splicing, how long must the guy wire be?

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Answer:

A telephone pole 40 feet high is to be guyed from its middle, and the guy is to make an angle of 45 with the ground. Allowing two extra feet for splicing, how long must the guy wire be? 30 ft.