# Determining the distance

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Joe and Jill set sail from the same point, with Joe sailing in the direction of S4 degree east and Jill sailing in the direction S9 degree west. After 4 hr, Jill 2 mi due west of Joe. How far had Jill sailed?

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The expert calculates the distance traveled, given direction and magnitude of movement.

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Joe and Jill set sail from the same point, with Joe sailing in the direction of S4 degree east and Jill sailing in the direction S9 degree west. ...

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