Find the missing side of the triangle formes using the pythagorean theorem
[tex]\begin{gathered} a^2+b^2=c^2 \\ a^2+25^2=65^2 \\ a^2=65^2-25^2 \\ a^2=4225-625 \\ a^2=3600 \\ a=\sqrt[]{3600} \\ a=60 \end{gathered}[/tex]add Oak road and mountain Highway together
[tex]60+25=85[/tex]substract airport road
[tex]85-65=20[/tex]she saves 20 miles by taking airport road.
