Answer
$\sqrt 6056$ $\approx$77.82
Work Step by Step
$a^{2}$ +$b^{2}$ =$c^{2}$ Let a=34mi and b=70mi
$34^{2}$ +$70^{2}$ =$c^{2}$
1156+4900= =$c^{2}$
6056 =$c^{2}$
c=$\sqrt 6056$
c$\approx$ 77.82
The hypotenuse is exactly $\sqrt 6056$mi
and approximately 77.82 mi