GCSE Edexcel Maths Questions & Answers 2024/2025

GCSE Edexcel Maths Questions & Answers 2024/2025 area of a circle - ANSWER- surface area of a sphere - ANSWER- surface area of a cone - ANSWER-πr x slanted length x πr^2 volume of cone - ANSWER- volume of a sphere - ANSWER- area of trapezium - ANSWER-1/2(a+b) x height circumference of a circle - ANSWER-π x d volume of a cuboid - ANSWER-l x w x h volume of a cylinder - ANSWER- volume of a pyramid - ANSWER-1/3 x area of base x h distance - ANSWER-speed x time density - ANSWER-mass/volume pressure - ANSWER-force/area Pythagoras' Theorem - ANSWER-a^2 + b^2 = c^2 Quadratic equation - ANSWER-when ax^2 + bx + c = 0 Sine rule - ANSWER-a/sinA = b/sinB = c/sinC Cosine rule - ANSWER- Area of a triangle - ANSWER-1/2 x a x b x sinC area of a sector - ANSWER-angle/360 x area of full circle segment area - ANSWER-sector area - area of triangle x angles - ANSWER-equal corresponding angles - ANSWER-equal alternate angles - ANSWER-equal co-interior angles - ANSWER-add to 180 total of exterior angles - ANSWER-360 1 exterior angle - ANSWER-360/number of sides sum of interior angles - ANSWER-(sides - 2) x 180 sin/cos/tan 45, lengths= - ANSWER- sin/cos/tan 30 or 60, lengths= - ANSWER- a^m x b^n - ANSWER-ab^m+n a^m / b^n - ANSWER-a/b^m-n a^0 - ANSWER-1 a^1 - ANSWER-a (a^m)^n - ANSWER-a^mxn (a/m)^n - ANSWER-a^n/m^n a^-m - ANSWER-1/a^m a^1/m - ANSWER-^m√a a^m/n - ANSWER-(^n√a)^m 3D Pythagoras' theorem - ANSWER-a^2 + b^2 + c^2 = d^2 when to use cosine rule - ANSWER-2 sides and an angle enclosed by them all 3 sides no angle when to use sine rule - ANSWER-2 angles any side 2 sides and an angle thats not enclosed by them inverse functions - ANSWER-replace x's with y's and make everything equal to x make y the subject replace the y with f^-1(x) y=f(x)+a - ANSWER-translation in the y-axis (move up or down by the amount of a eg. +2 = move up 2) y=f(x+a) - ANSWER-translation in the x-axis (but if it says +2 move down 2 ITS OPPOSITE!!) continues...