Eleni drives 120km on a bearing of 130°T. She then drives due west until she is due south of her starting point. How far is she from her starting point, correct to the nearest kilometre?

Answer 1

Draw and label a diagram!!

It is a 30-60-90 Triangle.

The side opposite the 30° angle is one-half the length of the hypotenuse.

d = 60 km.