Year 7-10 Formula Sheet, Exercises of Geometry

Download Year 7-10 Formula Sheet and more Exercises Geometry in PDF only on Docsity! 1 | P a g e Year 7-10 Formula Sheet Year 7 Angles Vertically opposite angles are equal Alternate angles on parallel lines are equal Corresponding angles on parallel lines are equal Co-interior angles on parallel lines are supplementary >> >> A B C D E F G H 125 x o o >> >> A B C D E F G H 137 x o o >> >> A B C D E H F G x 59 o o x  D B C A 67  2 | P a g e Geometry Angle sum of a triangle is 180° Exterior angle of a triangle equals the sum of the opposite interior angles Angle sum of a quadrilateral is 360° Area and Volume Area of a rectangle l is length b is breadth Area of a triangle b is base h is perpendicular height Area of a parallelogram b is base h is perpendicular height Volume of a rectangular prism l is length b is breadth h is height A B C D o o o o x 120 130 70 A D C B x 47 68 o o o A B C x 34 67 o o o 5 | P a g e Year 10 Interest and Depreciation Simple interest I is the interest P is the principal invested R is the rate of interest N is the number of periods Compound interest P is the principal invested r is the rate of interest n is the number of periods A is the amount after n periods Depreciation P is the original value r is the rate of depreciation n is the number of periods A is the value after n periods Surface Area and Volume Surface area of a cone r is the radius s is the slant height Surface area of a sphere r is the radius Volume of a pyramid A is the base area h is the height Volume of a cone r is the radius h is the height Volume of a sphere r is the radius Equations and Logarithms Definition of a logarithm Logarithm laws Graphs The parabola The cubic curve The hyperbola The exponential 6 | P a g e The circle (a, b) is the centre r is the radius Trigonometry Trigonometric relations Trigonometric functions Sine rule Cosine rule Area rule Quadratic Equations and the Parabola Quadratic equation Quadratic formula Axis of symmetry