Respuesta :

billgkgk

Answer:  This is not a right triangle.

the squares of the two shorter sides must add to the equal the square of the longest side.

a² + b² = c²

Step-by-step explanation:

5² + 5² ?=? 12²

25 + 25 ≠ 144

50 ≠ 144   So this is not a right triangle.