The longitude of the upper vertex of a great...

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Question 1 of 2066636ee928f7522a1c519b20

The longitude of the upper vertex of a great circle track is 169°E. What is the longitude of the lower vertex?

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Question 1 of 20

66636ee928f7522a1c519b20

The longitude of the upper vertex of a great circle track is 169°E. What is the longitude of the lower vertex?

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🔍 Key Concepts

• Great circle vertices occur at the highest and lowest latitude points on the great circle track • On a perfect sphere, the two vertices of a great circle have a simple relationship in longitude • Think about how longitudes are measured east and west from the Prime Meridian (0°) up to 180°

💭 Think About

• If one vertex is at 169°E, what happens to the longitude when you move halfway around the Earth along that great circle? • How are east longitudes and west longitudes related when they are on opposite sides of the globe? • Which longitudes in the choices are directly opposite (antimeridian) to a longitude near 170°E?

✅ Before You Answer

• Convert any west longitudes you consider into equivalent east longitudes (or vice versa) to compare them properly • Remember that the total difference between directly opposite meridians is 180° of longitude • Double‑check that your chosen longitude is correctly labeled E or W based on its position relative to the antimeridian (180°)

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Question 1 of 2066636ee928f7522a1c519b20

The longitude of the upper vertex of a great circle track is 169°E. What is the longitude of the lower vertex?

Back

Question 1 of 20

66636ee928f7522a1c519b20

The longitude of the upper vertex of a great circle track is 169°E. What is the longitude of the lower vertex?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed