Boating across a river, the current moves you downstream. instead of going directly across the river, the boat moves at a 25 degree angle. if the river is 375 feet across, how far will you end up downstream

Question

Mathematics

Marin Sawyer

4 May, 07:02

Boating across a river, the current moves you downstream. instead of going directly across the river, the boat moves at a 25 degree angle. if the river is 375 feet across, how far will you end up downstream

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Sheldon Mcclain · Answer 1

You can build a righ triangle with:

- angle 25°

- opposite side to 25°: 375 feet (across distance)

- adjacent side to 25°: x, the unknown information

Then, tan (25°) = 375/x ⇒ x = 375 feet / tan (25°) = 375 feet / 0.466 = 804 feet