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Revise using the sine and cosine rules to find a side or angle in a triangle for National 5 Maths. National 5 Maths - Using the sine and cosine rules to find a side or angle in a triangle.

Last summer, I had a chance to sail in a local Wednesday night race with some friends I had not seen in a while. They have a PHRF boat they sail in the jib and main class, and although their priority ...