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Right angle triangles are great!

Geometry Level 1

In a circle, a chord divides the diameter perpendicularly into lengths of 1 and 9. What is the length of the chord?

4 6 8 10

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Excel in math and science

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It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

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including olympiad champions, researchers, and professionals.

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by Stuti Malik

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