Lesson 1: Pythagorean Theorem - Summary

   Summary

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Review what you have learned prior to completing the Lesson Assignment.

Key Ideas

  • The formula used for the Pythagorean Theorem: a2 + b2 = c2


  • The sum of the squares of legs of a triangle will be equal to the square of the length of the hypotenuse.
  • The hypotenuse is always the longest side of a right triangle
  • By using the Pythagorean Theorem, you can solve for an unknown side length of a right triangle (leg or hypotenuse) if the other two side lengths are known.
  • The Pythagorean Theorem can only be used with right angled triangles.
  • The symbol for a right angle is a small square.

Key Terms



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