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Anuta_ua [19.1K]
1 year ago
14

A bridge builder wants to know the width of a river. He stands at point A along the river. He picks a point C directly across th

e river. He then walks downstream 90 feet from point A to point B. From point B, he sites C and determines the angle between the bank and point C (θ), to be 43º. What is the width of the river?
Mathematics
1 answer:
Maurinko [17]1 year ago
8 0
<span>width = 90 tan43 degrees = about 84 feet </span>
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