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A biologist wants to know the width (w) of a river to properly set instruments for an experiment. From point A, the biologist walks downstream 100 feet and sights to point C. From the sighting it is determined
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A biologist wants to know the width (w) of a river to properly set instruments for an experiment. From point A, the biologist walks downstream 100 feet and sights to point C. From the sighting it is determined that 0=54°. How wide is the river?

User Pyzzled
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7.4k points

1 Answer

2 votes

Answer:

w = 137.6 ft

Explanation:

100 tan 54° = w/100 *100

Simplify w/100*100 = w

w = 100 tan 54°

w = 137.6 ft

User Alex Brashear
by
7.9k points
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