Trig formulae 2.5 / 5 based on 2 ratings ? MathematicsTrigonometry and radiansASEdexcel Created by: chickpeatweetCreated on: 07-01-15 20:06 Area of a circle pi r^2 1 of 9 Area of a semi cirlce 0.5 pi r^2 2 of 9 Perimeter of a cricle 2 pi r 3 of 9 Area of sector (radians) 0.5 r^2 Ѳ 4 of 9 length of arc (radians) r Ѳ 5 of 9 Number of radians in a complete circle 2 pi 6 of 9 area of a triangle 0.5 ab sinC 7 of 9 Area of a triangle within a sector 0.5 r^2 sin Ѳ 8 of 9 Area of segment within a sector 0.5 r^2(Ѳ-sinѲ) 9 of 9
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