From Toronto To Kabul

Geometry Level 4

Make the simplifying assumption that the earth as a sphere with a radius of 6371 km. Find the length (in km) of the geodesic (shortest distance along the surface of the earth) between Toronto, Canada (43°39′N 79°23′W) and Kabul, Afghanistan (34°31′N 69°12′E).

Details and assumptions

This problem accompanies the Around The World in 80 Hours competition.

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100 Day Summer Challenge

From Toronto To Kabul

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Community

100 Day Summer Challenge

From Toronto To Kabul

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations, examples, and problems from the community.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.

Master advanced concepts through explanations,
examples, and problems from the community.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

Master advanced concepts through explanations,
examples, and problems from the community.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.