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Maths - Coggle Diagram
Maths
Density
Density = Mass / Volume
Volume = Mass / Density
Mass = Density x Volume
Pressure
area = force / pressure
force = pressure x area
Pressure = force / area
Speed, Distance, Time
distance = speed x time
time = distance / speed
Speed = Distance / time
Box Plots
IQR = Upper Quartile - Lower Quartile
Range = Highest Value - Lowest Value
Angles
Pythagoras
a(2) + b(2) = c(2)
the hypotenuse is always "opposite" the right angle
SAHCAHTOA
Sin, Cos and Tan
Sin = Adjacent / Hypotenuse
Cos = Adjacent / hypotenuse
Tan = Opposite / Adjacent
Compound Interest
Initial x Multiplier (Time)
Angles in Polygons
Triangle: Angles add up 180
Quadrilateral: Angles add up to 360
Pentagon: Angles add up 540
Hexagon: Angles add up to 720
Heptagon: Angles add up 900
Octagon: Add up 1080
Sum of interior angles = (n - 2) x 180
Percentages
Percentage Change: Percentage Change = Change / Original x 100
Fractions
Improper and Mixed Fractions
Multiplying Fractions:
3/4 x 2/5. 3 x 2 = 6 and 4 x 5 = 20 = 6 / 20 = 3 / 10
ADDING FRACTIONS:
1/4 + 7/10 . 1/4 + 7/10 --> 5/20 + 14/20 = 19/20