Geometry The Pythagorean Theorem
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The Champ
The Pythagorean Theorem

 

 We can use the theorems we have talked about so far

 to make millions of others.
 
 The problem is, the more you have 
 the harder it is to remember them all.
 
 Since all of the others can be worked out
 from the ones that we already have,
 it makes sense to only learn a new one
 if you use it a lot or need it for a test.
 
 Some people can remember lots of theorems
 some people have to look most of them up.
 
 If you can only remember one,
 this is the one to remember.
 
 The Pythagorean Theorem
 If you have a right triangle 
 and you multiply the length of the shorter sides times themselves
 and then add those two numbers together
 you get the same answer as you do 
 when you multiply the longer side times itself.
 
 We can use this to test to see if we have a right triangle.
 We can also use it to find the length of an unknown side
 if we have the length of the other two 
 and know that we have a right triangle.
 

 
 With the Pythagorean Theorem
 and the similar triangle stuff from the last page,
 math types were able to build all of Trigonometry ...
 

   copyright 2005 Bruce Kirkpatrick

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