The Bonneville Salt Flats, located in Utah near the border with Nevada, not far from Interstate 180,

Question:

The Bonneville Salt Flats, located in Utah near the border with Nevada, not far from Interstate 180, cover an area of over 30,000 acres. A race car driver on the Flats first heads north for 4.47 km, then makes a sharp turn and heads southwest for 2.49 km, then makes another turn and heads east for 3.59 km. How far is she from where she started?