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QUESTION
The towers of a suspension bridge reach 140m above the level of the bridge. The angles of elevation of the towers seen from the center the bridge and either end are 10 degrees and 19 degrees respectiv
The towers of a suspension bridge reach 140m above the level of the bridge. The angles of elevation of the towers seen from the center the bridge and either end are 10 degrees and 19 degrees respectively. How long is the bridge?
