Approximately 100 feet corresponds to which unit?

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Multiple Choice

Approximately 100 feet corresponds to which unit?

Explanation:
Think in terms of how far an arc of the Earth’s surface covers when you move by a tiny angle. One degree of latitude is about 69 miles. That means one minute (1/60 of a degree) is about 69/60 ≈ 1.15 miles, and one second (1/3600 of a degree) is about 69/3600 ≈ 0.0192 miles. Converting 0.0192 miles to feet gives roughly 0.0192 × 5280 ≈ 101 feet. So about 100 feet corresponds to one arcsecond of latitude/longitude. The unit here is the angular unit “second” (arcsecond), not a unit of time. Degrees and minutes are larger angular chunks, and range isn’t used for this distance context.

Think in terms of how far an arc of the Earth’s surface covers when you move by a tiny angle. One degree of latitude is about 69 miles. That means one minute (1/60 of a degree) is about 69/60 ≈ 1.15 miles, and one second (1/3600 of a degree) is about 69/3600 ≈ 0.0192 miles. Converting 0.0192 miles to feet gives roughly 0.0192 × 5280 ≈ 101 feet. So about 100 feet corresponds to one arcsecond of latitude/longitude. The unit here is the angular unit “second” (arcsecond), not a unit of time. Degrees and minutes are larger angular chunks, and range isn’t used for this distance context.

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