Grade 8 · Geometry

CCSS.MATH.CONTENT.8.G.B.7

Apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real-world and mathematical problems in two and three dimensions.

Read this standard on the official Common Core site

Lessons that teach this standard

• The Pythagorean Theorem: a² + b² = c²

  How to use a² + b² = c² to find a missing side of a right triangle, why c must be the hypotenuse, and how to find a leg rather than the hypotenuse.