Discusses the properties and types of triangles, explaining that a triangle is a closed figure with three sides and angles. It categorizes triangles into equilateral, isosceles, scalene, obtuse, right ...

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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.