Answer:
c) 36, 48, 60
Explanation:
A Pythagorean Triple is a set of positive integers (a, b, c) that follows the rule:
![\boxed{a^2+b^2=c^2}](https://img.qammunity.org/2023/formulas/mathematics/high-school/v2kn999c1hmnovkzqjnbsynbk4ocw4gd5o.png)
where a < c and b < c.
It always consists of:
- all even numbers, or
- two odd numbers and an even number.
When a and b are both even, c is even.
When one of a and b is odd and the other is even, c is odd.
(5, 7, 9) cannot be a Pythagorean Triple since it consists of all odd numbers.
(17, 20, 23) is not a Pythagorean Triple since:
![\implies 17^2+20^2=23^2](https://img.qammunity.org/2023/formulas/mathematics/high-school/l9czlomdo0d072tbyki6gg9rj74b3xpmlc.png)
![\implies 289+400=529](https://img.qammunity.org/2023/formulas/mathematics/high-school/9rbg6q7n6u44qgyeh5t1c6n1fnzpevacrv.png)
![\implies 689 \\eq 529](https://img.qammunity.org/2023/formulas/mathematics/high-school/m7ttdbd4l4ifqe4hjf6s09onviysiegqis.png)
(36, 48, 60) is a Pythagorean Triple since:
![\implies 36^2+48^2=60^2](https://img.qammunity.org/2023/formulas/mathematics/high-school/buy3v797028smz5odz1j3im5a6wfsujt2t.png)
![\implies 1296+2304=3600](https://img.qammunity.org/2023/formulas/mathematics/high-school/1wouqb4hcn8gt0hzzs34add5741y20wo86.png)
![\implies 3600=3600](https://img.qammunity.org/2023/formulas/mathematics/high-school/7h3mad2rqyj8cyr8hv8379wt8v2ncajd87.png)
(19, 22, 25) is not a Pythagorean Triple since:
![\implies 19^2+22^2=25^2](https://img.qammunity.org/2023/formulas/mathematics/high-school/c87p5pzkw3jxe9gyu3vfouakazgdhfqnx5.png)
![\implies 361+484=625](https://img.qammunity.org/2023/formulas/mathematics/high-school/4vetjnau7sami5w9m126268vxizf67cjnm.png)
![\implies 845\\eq 625](https://img.qammunity.org/2023/formulas/mathematics/high-school/k9slp5wdfbfsagqref2vycx8ho9rdka6et.png)