The video tutorial lesson [9:36] explains how to use the Pythagorean theorem to find the length of the hypotenuse or the length of one of the legs. Introduces the relationship between the length of the legs and the length of the hypotenuse in a 45-45-90 triangle. Practice problems available.

Concepts

indirect measurement, pythagorean theorem

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Additional Tags

45-45-90 triangle, determining unknown side lengths, khan academy, khan academy math

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Classroom Considerations

• Knovation Readability Score: 1 (1 low difficulty, 5 high difficulty)