Answer:
[tex]c=\sqrt{160}[/tex]
Step-by-step explanation:
Pythagorean theory formula:-
[tex]a^2+b^2=c^2[/tex]
Where..
a= 4, b= 12, c= x
[tex]4^2+12^2=x^2[/tex]
[tex]16+144=x^2[/tex]
[tex]160=x^2[/tex]
[tex]\sqrt{160}=\sqrt{x^2}[/tex]
[tex]x=\sqrt{160}[/tex]
