A railroad bridge over New Scotland Road in Slingerlands, New York, has a low clearance for trucks. An engineer standing 20 ft away measures a 15.4° angle of elevation from her eye level of 5.5 ft to the bottom of the bridge. If the road is flat between the engineer and the bridge, how high over the roadway is the bottom of the bridge? Round to the nearest inch.
A railroad bridge over New Scotland Road in Slingerlands, New York, has a low clearance for trucks. An engineer standing 20 ft away measures a 15.4° angle of elevation from her eye level of 5.5 ft to the bottom of the bridge. If the road is flat between the engineer and the bridge, how high over the roadway is the bottom of the bridge? Round to the nearest inch.
Elementary Geometry for College Students
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Chapter8: Areas Of Polygons And Circles
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Transcribed Image Text:A railroad bridge over New Scotland Road in
Slingerlands, New York, has a low clearance for
trucks. An engineer standing 20 ft away measures a
15.4° angle of elevation from her eye level of 5.5 ft to
the bottom of the bridge. If the road is flat between the
engineer and the bridge, how high over the roadway is
the bottom of the bridge? Round to the nearest inch.
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