Question

Which set of numbers could represent the lengths of the sides of a right triangle?

13, 21, 34

8, 14, 21

15, 18, 26

12, 16, 20

Answer 1

9*9+40*40=41*41

Explanation:

The largest length is always the hypotenuse. If we were to multiply any triple by a constant, this new triple would still represent the sides of a right triangle. Therefore, 6, 8, 10 and 15, 20, 25, among countless others, would represent the sides of a right triangle.