final review math sec 2. ratio and proportions find the pattern cross multiplication % decimals and...
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FINAL REVIEW
Math Sec 2
Ratio and Proportions
Find the patternCross multiplication% Decimals and roundingKing Henry Died Unexpectedly Drinking Chocolate
Milk
Representation of a Situation
Cartesian Plane
Algebra
BEDMASIntegersSimilar TermsMonomialsPolynomialsVariable (a letter to represent the variable)Constant (a number that does not vary)
Independent variable (side length, etc) Dependent variable (perimeter)
Monomials
Adding and Subtracting Monomials
Multiplying Monomials
Dividing Monomials
Dilations and similar figures
Dilation = multiply (gets bigger)Divide if it smallerSimilar figures
Must have same angles Must have same shape Must have same proportion
Polygons
Perimeter of a regular polygon P = n X c (n is the number of sides, c is the side
length)
Area of a regular polygon A = p X a / 2 (p is the perimeter, a is the apothem)
Interior angle Sum of interior angles = (number of sides – 2) X 180
degrees Interior angle = sum of interior angles / # of sides
Exterior angle Exterior angle = sum of exterior angles / # of sides
Apothem Apothem = 2 X area / perimeter
Regular polygon
Number of sides
Number of diagonals
from a given vertex
Sum of the interior angles
Measure of one interior angle
Pentagon
5 2 540 108
Hexagon 6 3 720 120
Octagon 8 5 1080 135
Decagon 10 7 1440 144
Polygon n n - 3 (n – 2) X 180 (n – 2) X 180 / n
Circle
Area of a circle
Perimeter (circumference) of a circle
Solids
Use your formula sheet
Cube
Cylinder
Trapezoidal Prism
Surface Area of a Trapezoidal Prism = a(l + h) + b(l + h) + lc + ld.Where,a, b, c, d are sides of the trapezium.h = Altitude and l = Height of the prism.
Pentagonal Prism
Slant Height
Pyramid Surface Area
Probability
Basic counting rule 2 steps
A x B 3 steps
A x B x C
Probability of an outcome P(a) = # of favourable cases / # of possible cases
Probability of an event in an equally probable space P(a) = # of favourable outcome to occur / # possible
outcomes in the experiment
Statistics
Bar graphTree diagramPie chart (circle graph)Line graph (broken line)PictographSurvey, tally, research, censusQualitative vs quantitative