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What is the approximate distance between Portland, Oregon (45° north, 122° west), and San Francisco, California (37° north, 122° west). Use 3,960 miles for the radius of Earth.
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Nov 19, 2017
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What is the approximate distance between Portland, Oregon
(45° north, 122° west), and San Francisco, California (37° north, 122° west). Use 3,960 miles for the radius of Earth.
Mathematics
high-school
Jesus Bejarano
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Jesus Bejarano
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1
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5669.71 km
Working
The two cities are located on the same longitude.
The formula for the distance then is;
Distance =
*2*π*3960
where
∅ is the latitude difference-add the latitudes as they are on different sides.
Distance =
*2*
*3960
=5669.71 km
Alex Jorgenson
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Nov 25, 2017
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Alex Jorgenson
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