$\"\"$

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The vector sum is: $\"\"$ miles east and then $\"\"$ miles south.

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Let $\"\"$ miles east and $\"\"$ miles south.

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Draw a diagram to represent $\"\"$ and $\"\"$ using a scale of $\"\"$ .

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(a)

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$\"\"$

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(b)

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$\"\"$

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Translate $\"\"$ so that the tail touches the tip of $\"\"$ .

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Then draw the resultant vector $\"\"$ .

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$\"\"$

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Resultant vector of $\"\"$ .

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$\"\"$

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

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The length of the vector is calculated by solving $\"\"$ .

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$\"\"$

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The length of the vector is approximately $\"\"$ which is calculated as $\"\"$ .

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Therefore the resultant is about $\"\"$ at a bearing of $\"\"$ .

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$\"\"$

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Resultant is about $\"\"$ at a bearing of $\"\"$ .