Mathematical Formulae Compound Interest Total amount = Mensuration Curved surface area of a cone = πrl Surface area of a sphere = 4πr2 Volume of a cone = Volume of a sphere = Area of triangle = ABC Arc length = where is in radians rθ, θ Sector area = , where is in radians θ Trigonometry = + cos a2 b2 c2 A − 2bc Statistics Mean = Standard deviation = Answer all the questions. Evaluate , correct to 4 significant figures. 1 [1] Answer 2 (a) Find the highest common factor of 252 and 120.
Mathematical Formulae Compound Interest Total amount = Mensuration Curved surface area of a cone = πrl Surface area of a sphere = 4πr2 Volume of a cone = Volume of a sphere = Area of triangle ABC = Arc length = rθ, where θ is in radians Sector area = , where θ is in radians Trigonometry a2 = b2 + c2 − 2bc cos A Statistics Mean = Standard deviation = Answer all the questions. 1 Evaluate , correct to 4 significant figures. Answer [1] 2 (a) Find the highest common factor of 252 and 120.