Using The Pythagorean Theorem

 

 

The pythagorean theorem is relatively easy once you get the hang of it. First knowing the equation

 A²+B²=C²  is very important when using the Pythagorean theorem.  Here's a little example before you click on the video to understand how to use it a little better.

 

 Step 1: So here you see that leg 1 is labeled 3 and leg 2 is labeled 4. What we are trying to find is x which is the hypotenuse. Using the equation above you can find the hypotenuse. Leg 1 would be A. Leg 2 would be B, and X would be they hypotenuse.

 Step 2: Plug in the numbers into the equation. 3²+4²=X²

Step 3: Solve. 3*3=9; 4*4=16 (16+9=25) Then find the square root of the sum. Ö25=5.

So 5 would be the hypotenuse.