Formulae I must learn! 0.0 / 5 ? MathematicsFormulaeNational 5SQA Created by: RJSmartCreated on: 23-03-18 11:49 Length of an Arc arc length = (x°/360°) * π * d 1 of 5 Area of a Sector Sector area = (x°/360°) * π * r^2 2 of 5 Area of a triangle Area of a triangle = 0.5 * breadth * height (0.5bh) 3 of 5 Area of a rectangle Area of a rectangle = length * breadth (lb) 4 of 5 Discriminant sqrt (b^2 -4 * a * c) 5 of 5
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