EDEXCEL FORMULAE You need to know this for

EDEXCEL FORMULAE You need to know this for your GCSE (Higher tier only formulae are indicated) www. mathssandpit. co. uk/blog

Rectangle = l × w w l www. mathssandpit. co. uk/blog ARE

Parallelogram = b × h a h b www. mathssandpit. co. uk/blog ARE

h b www. mathssandpit. co. uk/blog ARE

a h www. mathssandpit. co. uk/blog b ARE

D ia m et er Circumference = π × diameter C = πd www. mathssandpit. co. uk/blog Circles

Centre R ad iu s Circumference = 2 × π × radius C = 2πr www. mathssandpit. co. uk/blog Circles

Centre R ad iu s Area = π × radius 2 A = πr www. mathssandpit. co. uk/blog Circles

h www. mathssandpit. co. uk/blog w VOLUM

Area of cross section www. mathssandpit. co. uk/blog VOLUM

Cylinder = area of circle × height 2 Cylinder = πr h r www. mathssandpit. co. uk/blog VOLUM

Higher tier only www. mathssandpit. co. uk/blog VOLUM

Speed = Distance ÷ Time The clue is in the units eg speed in m/s, indicates metres ÷ seconds COMPOUND www. mathssandpit. co. uk/blog

Density = Mass ÷ Volume The clue is in the units eg density in g/cm 3, indicates weight in grams ÷ volume in cm 3 COMPOUND www. mathssandpit. co. uk/blog

Pressure = Force ÷ Area The clue is in the units eg speed in N/m 2, indicates force in Newtons ÷ area in m 2 COMPOUND www. mathssandpit. co. uk/blog

Pythagoras a 2 + b 2 = h 2 h b a (h is always the hypotenuse) RIGHT-ANGLED www. mathssandpit. co. uk/blog

Trigonometry opp hyp x⁰ adj Check your calculator is in degrees RIGHT-ANGLED www. mathssandpit. co. uk/blog

C Sine Rule b A Higher tier only a c B Check your calculator is in degrees NON-RIGHT-ANGLED www. mathssandpit. co. uk/blog

Cosine Rule C b A Higher tier only a c B Check your calculator is in degrees NON-RIGHT-ANGLED www. mathssandpit. co. uk/blog

Area of a triangle C b A Higher tier only a c B Check your calculator is in degrees NON-RIGHT-ANGLED www. mathssandpit. co. uk/blog

Quadratic Equations Higher tier only www. mathssandpit. co. uk/blog Algebra