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Earth’s radius is $\"\"$ miles.

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Latitude measures for Ogden is $\"\"$ .

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Latitude measures for Phoenix is $\"\"$ .

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Convert the latitude measures of Ogden $\"\"$ to degrees.

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Each minute is $\"\"$ of a degree and each second is $\"\"$ of a minute.

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Convert the latitude measures of Phoenix $\"\"$ to degrees.

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$\"\"$ .

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Central angle is the difference of angle of Phoenix and Ogden $\"\"$ .

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Convert the central angle degrees measure to radians.

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Sector angle : $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in $\"\"$ .

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Ogden and Phoenix cities are $\"\"$ miles apart.

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Ogden and Phoenix cities are $\"\"$ miles apart.