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Famous Problem

Geometry Level 2

A man walks 1 mile south, 1 mile east, and 1 mile north. He ends up exactly where he started. At how many points could he start?

Assume the earth is a solid sphere.

1 \[\infty\] 0 2

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.

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by Daniel Wang

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