Answer :
Using Pythagorean Theorem
[tex]10^2+14^2=18^2\\ 100+196=324\\ 296=324[/tex]
The above is not true, therefore it's not a right triangle.
[tex]10^2+14^2=18^2\\ 100+196=324\\ 296=324[/tex]
The above is not true, therefore it's not a right triangle.