Question: A carpenter is preparing to put a roof on a garage that is 20 feet by 40 feet by 20 feet. A steel support beam

A carpenter is preparing to put a roof on a garage that is 20 feet by 40 feet by 20 feet. A steel support beam 46 feet in length is positioned in the center of the garage. To support the roof, another beam will be attached to the top of the center beam (see the figure). At what angle of elevation is the new beam? In other words, what is the pitch of the roof?

New beam 46 ft 20 ft 20 ft 10 ft 40 ft

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