CK-12 Geometry-Concepts

http://www.ck12.org Chapter 8. Right Triangle Trigonometry

8.1 Pythagorean Theorem and Pythagorean

Triples

Here you’ll learn the Pythagorean Theorem and how to apply it in order to find missing sides of right triangles and
determine whether or not triangles are right triangles.

What if a friend of yours wanted to design a rectangular building with one wall 65 ft long and the other wall 72 ft
long? How can he ensure the walls are going to be perpendicular? After completing this Concept, you’ll be able to
apply the Pythagorean Theorem in order to solve problems like these.

Watch This

MEDIA

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URL: http://www.ck12.org/flx/render/embeddedobject/52507

CK-12 Foundation: Chapter8ThePythagoreanTheoremandPythagoreanTriplesA

MEDIA

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URL: http://www.ck12.org/flx/render/embeddedobject/1372

James Sousa: Pythagorean Theorem

Guidance

The sides of a right triangle are called legs (the sides of the right angle) and the side opposite the right angle is the
hypotenuse. For the Pythagorean Theorem, the legs are “a” and “b” and the hypotenuse is “c”.