Answer :

To get the answer we have to use Pythagorean theorem
[tex]a^2+b^2=c^2[/tex]
Now substitute the values.
[tex]490^2+960^2=c^2 \\ 240100+921600=c^2 \\ 1161700=c^2 \\ c=1077.82[/tex]
Rounded its 1078 feet