The vector sum is: miles east and then miles south.

Let miles east and miles south.

Draw a diagram to represent and using a scale of .

(a)

(b)

Translate so that the tail touches the tip of .

Then draw the resultant vector .

Resultant vector of .

Measure the length and then measure the angle this vector makes with the horizantal.

The length of the vector is calculated by solving .

The length of the vector is approximately which is calculated as .

Therefore the resultant is about at a bearing of .

Resultant is about at a bearing of .

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