May 19th, 2015
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CHAPTER 1 : LINES & ANGLES 1. Find the value of the unknowns in the following figures. 2. In the diagram, CDE is a straight line.  CDF = 310 and refles  BAD = 3020 . (a) Calculate ADF (b) Given that CAD is 3 times ADF , calculate ACD .

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Mathematics Formula (E-Maths)Symbols used: - pi r - radius l - slanted height h - height Area and PerimeterArea of a square - Length LengthArea of a triangle - Area of a rectangle - Length BreadthArea of a parallelogram - Length HeightArea of a rhombus - Length LengthArea of a trapezium - (Sum of parallel lines) HeightArea of a circle - rCircumference of a circle - 2rCurved surface area of a cylinder - 2rhSurface area of a cylinder - 2r + 2rhCurved surface area of a cone - Surface area of a sphere - 4rVolumeVolume of a cube - Length Length LengthVolume of a cuboid - Length Breadth HeightVolume of a cylinder - rhVolume of a pyramid - Volume of a cone - Volume of a prism - Surface area of the base HeightVolume of a sphere - AlgebraQuadratic Equations Formulaax + bx + c = 0:Pythagoras TheoremThis formula only applies to right-angled triangle.a + b = cWhere c is the hypotenuse.IndicesCoordinate GeometryGradient of a line - Length of a line - Equation of a line - y = mx + cStandard DeviationUngrouped data: Grouped data, frequency distribution:PolygonSum of all the angles in a n-sided polygon - 180 (n 2)Each angles of a n-sided regular polygon - SpeedDensityTrigonometrySine Rule or Area of triangle formula:Cosine RuleCongruency and SimilarityIf the two triangles below are similar, If the two solids below are

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