The value of sixty nautical miles per degree...

Question 1 of 2707066636ee928f7522a1c51a563

The value of sixty nautical miles per degree of geodetic latitude is most correct at __________.

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Question 1 of 27070

Q

The value of sixty nautical miles per degree of geodetic latitude is most correct at __________.

🔍 Key Concepts

• Geodetic latitude vs. geographic latitude and how we measure it on a globe • Relationship between minutes of latitude and nautical miles • How the Earth’s shape (oblate spheroid, not perfect sphere) affects distance per degree of latitude

💭 Think About

• Think about where on Earth the assumption "1 minute of latitude = 1 nautical mile" is MOST accurate, not just approximately true. • Consider whether the Earth’s flattening at the poles or bulging at the equator would make degrees of latitude slightly longer or shorter. • Ask yourself: if the Earth were a perfect sphere, which choice would be right? Then, how does the real Earth’s shape change that?

✅ Before You Answer

• Review the definition: 1 nautical mile is based on 1 minute of arc of latitude on a standard (reference) Earth, not the actual variable Earth everywhere. • Check whether the distance represented by 1 degree of latitude is exactly the same from equator to poles, or only very close. • Be sure you are thinking about “most correct” on the real Earth, not on a perfectly spherical Earth.