01:12
Pythagorean Theorem, The
The Pythagorean Theorem is a formula that describes the relationship between the three sides of a right triangle: a2 b2 = c2.
02:17
Practical Problem: Where to Place the Braces
The Pythagorean Theorem is used to calculate where the braces should be placed to hang a store's sign so that the bottom falls six inches above the door.
01:18
Introduction to Right Triangles
A right triangle is a triangle that has one right, or 90 degree, angle in it. A right triangle has two perpendicular sides called legs, and a side opposite the right angle called the hypotenuse.