Respuesta :

Hrishii

Answer:

First option is the correct answer

Step-by-step explanation

[tex] c^2 +2ab =(a+b) ^2 [/tex]

[tex] c^2 +\cancel{2ab} =a ^2 +\cancel{2ab}+b ^2 [/tex]

[tex] c^2 =a ^2 +b ^2 [/tex]

This is the Pentagons Theorem: