Answer:
[tex]x=13.5[/tex]
Step-by-step explanation:
Use the Pythagorean theorem, [tex]a^2+b^2=c^2[/tex]:
[tex]11.8^2+6.6^2=x^2[/tex]
Simplify exponents:
[tex]139.24+43.56=x^2[/tex]
Simplify addition:
[tex]182.8=x^2[/tex]
Find the square root:
[tex]\sqrt{182.8}=\sqrt{x^2}\\\\ 13.5=x\\x=13.5[/tex]
Finito.
