12 of 100: Winding Roads

Geometry Level 2

In which figure is the black path the shortest?

There are some quick-and-clever solutions where the path lengths are carefully compared but never calculated. However, most who guess at a glance guess wrong.

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12 of 100: Winding Roads

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, interactive explorations.

Used and loved by over 7 million people

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

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

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