EOY Year 10 equations Flashcards
Area of a Rectangle ?
Length x Width l x w
Area of a parallelogram ?
Base x Height b x h
Area of a Triangle
(Base x Height) ——————— 2
Area of a Trapezium ?
Height(a+b) ————— 2
Circumference of a circle ?
Pie x Diameter C=pd
Circumference of a circle ?
2 x Pie x Radius C=2pr
Area of a circle ?
2 Pie x Radius squared A=pr
Pythagoras’ Theorem For a right angled triangle ?
2 2 2 a + b = c
Trigonometric ratios. sin ?
sin = opposite ———— hypotenuse
cos ?
cos = adjacent ———— hypotenuse
tan ?
tan = opposite ———— adjacent
The Quadratic Equation
2 -b+-root(b - 4ac) ———————— 2a
Volume of a cuboid ?
Length x Width x Height C=lwh
Volume of a prism ?
Area of cross section x Length
Volume of a cylinder?
2 Pie x Radius x Height
Volume of a pyramid ?
1 - x Area of base x Height 3
Compound measures Distance ?
distance = speed ——— time
Density ?
density = mass ——— volume
Pressure ?
pressure = force ——— area
Trigonometric formulae Sine Rule ?
a b c —— = —— = —— sin A sin B sin C
Cosine Rule ?
2 2 2 a = b + c - 2bc cos A
Area of triangle (trigonometric) ?
1 —ab sin C 2
The quadratic formula ?
2 ax + bx + c
3-m =
1/3m e.g. 64power-1/2 = 1/64power1/2 = sqrt64 = 8 so 1/8
