1. A boat sails east from Harbour A for 500km and stops at Harbour B. The boat then sets sail from Harbour B in a south-easterly direction (45° south of east) for 900km and stops at Harbour C. (a)...

Extracted text: 1. A boat sails east from Harbour A for 500km and stops at Harbour B. The boat then sets sail from Harbour B in a south-easterly direction (45° south of east) for 900km and stops at Harbour C. (a) What is the straight-line distance from Harbour A to Harbour C? (b) In what direction would this boat have needed to travel in order to get directly from Harbour A to Harbour C (in a straight line)? Give your answer in the form “0° south of east", correct to the nearest degree.