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How Is The Pythagorean Theorem Used Today

Updated on August 9, 2009

The Pythagorean Theorem is a simple mathematical equation with various uses today in geometry, trigonometry, architecture, and more.  The equation is as follows:

a2 + b2 = c2

This only applies for a right triangle, that is, a triangle that has a 90 degree angle.  C is the hypotenuse (the longest side), and A and B are the two other sides.  Thus if you know A and B, you can easily calculate C by using square roots.  Likewise if you know B and C or A and C.

The ability to find out this length quickly is useful in trigonometric and geometric proofs, as well as lengths for physics, and designs in architecture.

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    • profile image

      girl dat iz a hater of math.... -3- 

      4 years ago

      u all shuld shaddup cuz no1 carz

    • profile image

      person1301 

      4 years ago

      OMG o-o

    • profile image

      abhi 

      4 years ago

      interesting

    • profile image

      ANUM 

      5 years ago

      NEVER KEPT STUPID PHOTS ON THIS SITE ITS SHAME FOR PYTHAGORAS

    • profile image

      Spongebob Squarepants 

      5 years ago

      WHO LIVES IN A PINEAPPLE UNDER THE SEA?...SPONGEBOB SQUAREPANTS!

    • profile image

      Unicorn 

      5 years ago

      Hello fellow chickens

    • profile image

      Droopy 

      5 years ago

      I think you all need to learn how to spell first!

    • profile image

      get lives 

      5 years ago

      get lives

    • profile image

      This is stupid u guys all stfu 

      5 years ago

      ^ read above

    • profile image

      Supriya 

      6 years ago

      Maths is somtimes nice bt sontimes borin......

    • profile image

      HatesLosers 

      6 years ago

      It amazes me how much time is wasted in arguing and jotting down stupid and pointless comments, rather than to try to give useful and substansive information about the subject.

    • profile image

      yellow 

      6 years ago

      @douglas:WRONG, math is used in mcdonolds o_o, so if you dont know math, you got no job lol....so LEARN IT, i dont like math either :P

    • profile image

      yellow 

      6 years ago

      ....hey doods, one thing, WHAT THE HECK? math is what keeps us from dieing, and what kept us from dieing from bad stuff, and beasides, if you suck in math, get more good at it then -3-

    • profile image

      PeachesMakeMeSexy!!!!! 

      6 years ago

      math is so freaking confusing....

    • profile image

      Andrinahope 

      6 years ago

      all of you (dylan and mickey) just shut up and get a life!!!

    • profile image

      Pythagoras 

      6 years ago

      How about you all shut up and be quite as i am Pythagoras and i am still alive

    • profile image

      math person 

      7 years ago

      hi I do not agree with some of you i dont like math much

    • profile image

      sup? 

      7 years ago

      I do not like math!

    • profile image

      nunya 

      7 years ago

      you know what's a waste of time? arguing on whether math is useful or not!

    • profile image

      blah 

      7 years ago

      ur stupid

    • profile image

      Matt 

      7 years ago

      Yeah you guys should definitely be working on your grammer rather than math.haha

    • profile image

      Douglas 

      7 years ago

      Let me just point out how pointless it is to argue over the internet. Math has seen multiple uses in modern day life. It is used to calculate taxes, used EXTENSIVELY in Science, and can be used to put multiple numbers together. Lets not leave out probability and estimation, we use it Everyday! Even a garbage man will say "We can probably hold about ____ more pounds in the truck. Just wanted to point out how much we DO use it and if you're going to argue, go on a site made specifically for that reason. I may hate math but if I'll be learning it in the Naval Academy, I had better get used to it. Unless you wanna work in Mcdonald's, you really should too.

    • profile image

      I am better than dylan and mickey 

      7 years ago

      Math is awesome and intersting, but only if the teacher doesn't give homework!

    • profile image

      Pythagoras 

      7 years ago

      I am glad to see young puils of today, revising what i have taught.

    • profile image

      Saucey harlet 

      7 years ago

      balls up with soapy suds??? nomnom nom

    • profile image

      nichola 

      7 years ago

      maths is so dam bitching hard but stil hav 2 do it

    • profile image

      Chelsea 

      7 years ago

      Math is so friggen easy! that's only cuz i'm asian but whateves!! XP

    • profile image

      im the coooolest!!!!!!!!!!!!!!!! 

      7 years ago

      the pythagoras thing is coool!!

      i like it , its fFuUnN!!!

    • profile image

      im the coooolest!!!!!!!!!!!!......... 

      7 years ago

      stop arguing you ffffffffrrrrrrrrreeeeaaaaakkkkkksssss!!!!!!!!! i kinda like math, kainda dnt lk it,...... so just live with that or il flush ur heads dwn the toilets,,, hahahahahahhhhhhhaaaaaaaaa!!!!!!!!!!

    • profile image

      JOSIE  

      7 years ago

      HI ROSA LOVE U!!!

    • profile image

      ROSA 

      7 years ago

      BLACK MAN HERE LOVING MATH!!!!! BIG NERD STATUS!!!I AM SO SMART ND IVAN IS DUMB!!!!!

      -DOUBLE DEE

    • profile image

      DESTINY 

      7 years ago

      I LOVE MATH I AM NERD ND I HAVE STRIGHT A'S IN THIS SUBJECT!!!! LOVING MATH

      -BOLDER

    • profile image

      FELIPE 

      7 years ago

      THIS MATH IS CONFUSING I AM LOST WITH ALL THIS HAHA

    • profile image

      dylan and mickey r retards 

      7 years ago

      math is not a waste of time i will laugh when you finally realize that you were wrong this whole time

    • profile image

      awesome 

      7 years ago

      dylan and mickey are both right. math is a waste of time. but hey, i still do it.

    • profile image

      Olivia 

      7 years ago

      I totally agree with dawn and anna. Math is so important to daily life and if we didn't use it we would still be cavemen. Just because you two (dylan and mickey) cant do math doesnt mean you should criticize it!

    • profile image

      anna 

      7 years ago

      i think you guys should try the dawn is cool therome its so good and works everytime

    • profile image

      dawn 

      7 years ago

      ithink dylan and mickey are both... WRONG!!! so just shutup

    • profile image

      mickey 

      7 years ago

      I agree with Dylan.

    • profile image

      dylan 

      7 years ago

      i think math is a wast of time

    • profile image

      queen 

      8 years ago

      i think its very easy to learn nd it can help you with ur mulitplcations

    • HistoryGenius profile image

      HistoryGenius 

      8 years ago

    working

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