Toms Maths revision 0.0 / 5 ? Mathematics2D and 3D shapeGCSEEdexcel Created by: tbailey20Created on: 24-03-18 16:22 Arithmetic Series Sn=1/2 n(2a+(n-1)d) 1 of 36 Pythagoras Theorem in 3D a2+b2=c2 2 of 36 Sine rule a/sinA=b/sinB=c/sinC 3 of 36 Cosine rule -Part 1 a2=b2+c2-2bc cosA 4 of 36 Cosine rule -Part 2 b2=a2+c2-2ac cosB 5 of 36 Cosine rule -Part 3 c2=a2+b2-2ab cosC 6 of 36 Exterior angle + Interior Angle = 180o 7 of 36 Exterior angles in regular polygons = 360/n 8 of 36 Interior angles in regular polygons = (n-2)x180/n 9 of 36 Quadratic Formula x=-b± 10 of 36 Nth term = a+(n-1)d 11 of 36 SohCahToa Sinx=Opposite/Hypothenuse 12 of 36 SohCahToa Cosx=Adjacent/Hypothenuse 13 of 36 SohCahToa Tanx=Opposite/Adjacent 14 of 36 Trigonometry Area=1/2 abSinC 15 of 36 Modal Class = Most popular group 16 of 36 Range = biggest amount- smallest amount 17 of 36 Estimate for the mean = sum of midpoint x frequency / total frequency 18 of 36 Upper Quartile It is the median of the upper half of the data 19 of 36 Lower Quartile It is the median of the lower half of the data 20 of 36 Interquartile range= Upper quartile - lower quartile 21 of 36 Sphere Volume= 4/3π r2 22 of 36 Sphere surface area= 4πr2 23 of 36 Cone volume 1/3πr2h 24 of 36 Cone surface area πr2+πrl 25 of 36 Equilateral triangle= 3 equal sides 3 angles=60o 26 of 36 Isosceles triangle= 2 equal sides 2 angles are the same 27 of 36 Right-angles triangle= one angle= 90o 28 of 36 Area of rhombus base x height 29 of 36 Area of trapezium= 1/2 x (a+b) x height 30 of 36 Area of triangle= base x height / 2 31 of 36 Area of rectangle= length x width 32 of 36 Area of circle= πr2 33 of 36 Perimeter for circle= 2πr 34 of 36 Perimeter for everything else = Add all sides together 35 of 36 < > ≤ ≥ less than greater than less than or equal to greater than or legal to 36 of 36

## Comments

Report