In this lesson we are going to go over the Pythagorean theorem, which is used with right triangles. The Pythagorean theorem says that in a right triangle, the sum of the squares of the measures of the legs is equal to the square of the measure of the hypotenuse. This lesson also covers the Pythagorean converse, which says that if the sum of the squares of the measures of two sides is equal to the square of the measure of the longest side, then the triangle is a right triangle. You'll learn when to use the Pythagorean theorem, and when to use its converse. In this lesson you'll also learn about a special triple of numbers.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.