MathCastle
TrigonometryHard

Trigonometry · Hard problem

To find the width of a river a surveyor at point AA sights a tree TT directly across the river (line ATAT is perpendicular to the bank). She walks 120120 m along the bank to point BB and measures angle TBA=58∘TBA=58^\circ. Find the width of the river.

Round your answer to the nearest hundredth.

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