# GCSE Maths Symbols, Equations & Formulae

### Description

This Flashcard deck shows you the formulae needed for your GCSE Maths exam. This includes Algebra equations and Geometry formulae.
Flashcards by Elaine Lockwood, updated more than 1 year ago More Less
 Created by Andrea Leyden almost 9 years ago Copied by Elaine Lockwood over 2 years ago
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## Resource summary

 Question Answer $\pi$ 3.141592 Circumference of a Circle C = 2$$\pi$$r Perimeter of a Semi-circle $$\pi$$ x r + 2 x r Perimeter of a Quarter Circle $$\frac{1}{2}$$ x $$\pi$$ x r + 2 x r Area of a Circle $$\pi$$$$r^2$$ Area of a Semi-circle $$\frac{1}{2}$$ x $$\pi$$ x $$r^2$$ Area of a Quarter Circle $$\frac{1}{4}$$$$\pi$$$$r^2$$ Area of a Rectangle base x height Area of a Triangle $$\frac{1}{2}$$ x base x height Area of a Parallelogram base x height Area of a Trapezium $$\frac{1}{2}$$(a + b)h Area of a Sphere 4$$\pi$$$$r^2$$ $a^2$ a x a $b^3$ b x b x b $4d^2$ 4 x d x d $2e^3$ 2 x e x e x e $4y^2 - y$ when y = 3, y = ? (4 x y x y) - y = (4 x 3 x 3) - 3 = 33

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