Question 551748
It is not possible to have a right triangle with the given sides where 19 represents the hypotenuse.

The reason is that in this case the sum of the squares of sides 7 and 13 DOES NOT equal the hypotenuse 19 squared.


LOOK:


7^2 + 13^2 = 19^2


49 + 169 = 361


218 DOES NOT EQUAL 361.


Understand?