We need to sketch the problem first. Find the size of angle R. The boat travels from the harbour in a NW direction. This is halfway between west and north so it is at an angle of 45° to the axis for ...
Bearings are angles used in navigation. Missing information about bearings can be worked out using the sine and cosine rules. Find out here. National 5 Maths - Using bearings in trigonometry. revision ...
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