Which of the following are measurements of the sides of a right triangle?

A. 3, 4, 5
B. 28, 26, 12
C. 17, 14, 6
D. all of the above

Question

Which of the following are measurements of the sides of a right triangle?

A. 3, 4, 5
B. 28, 26, 12
C. 17, 14, 6
D. all of the above

mertsj · Answer

1.  Square the two smallest numbers from each group.  
2.  Add those two numbers together
3.  Square the biggest number in each group.  
4.  Compare the answers of Step 2 and Step 3
5.  Are they the same?
6.  If so those are the sides of a right triangle.

anonymous · Answer

A?

mertsj · Answer

yes, A is one choice.  Do any of the others work?