Which set of integers is a Pythagorean triple?

A.
5, 12, 13

B.
3, 5, 6

C.
15, 9, 17

D.
6, 8, 12

Question

Which set of integers is a Pythagorean triple?
  
 
 

 
 

  

  A. 
  5, 12, 13   
   

 
 

  

  B. 
  3, 5, 6   
   

 
 

  

  C. 
  15, 9, 17   
   

 
 

  

  D. 
  6, 8, 12

solomonzelman · Answer

plug them into the Pythagorean

sweetburger · Answer

$$a^2+b^2=c^2$$

sweetburger · Answer

c is always the hypotenuse and the largest side

ranga · Answer

In each answer choice you have three numbers.  Square each number.  See if the smaller two squares add up to the largest square.  If yes, then it is a Pythagorean triple.