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45 Cards in this Set
- Front
- Back
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3/10
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3-numerator
10-denominator |
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Adding fractions
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COMMON DENOMINATOR
1/5+3/5= 4/5 |
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subtracting fractions
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common denominator
1/3 - 1/4 = 4/12 - 3/12 = 1/12 |
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Multiply fractions
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1/3 x 2/5 = 2/15
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converting to a decimal
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5/6 = 5 divided by 6
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area formula
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length x width
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area of a cube
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length x width x height
answer is cubed |
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blood alcohol content
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amount of blood divided by grams (or amount) of alcohol
times answer by 100 |
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problem solving
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1- understand the problem
2-devise a strategy for solving 3- carry out strategy+revise 4-check your result |
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undefined terms
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line
point plane |
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angle
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defined term of:
two lines intersect |
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vertex
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defined term:
point where an angle is made |
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right angle
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measure 90 degrees
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acute angle
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less than 90 degrees
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obtuse angle
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greater than 90 degrees but less than 180 degrees
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straight angle
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measures 180 degrees
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1/8 of a circle
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360 x 1/8
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100th of a circle
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360 divided by 100
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polygon
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closed shape with straight, non intersecting sides
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diameter
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belt across a circle
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radius
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half the diameter
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4 sided
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quadrilateral
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5 sided
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pentagon
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6 sided
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hexagon
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7 sided
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heptagon
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8 sided
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octogon
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9 sided
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nonagon
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10 sided
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decagon
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equilateral triangle
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all sides are equal
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isoscles triangle
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two sides are congruent
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scalene
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no sides are congruent
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acute triangle
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all angles less than 90 degrees
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obtuse triangle
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one angle is bigger than 90 degrees
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right triangle
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one angle is 90 degrees
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CIRCUMFERENCE OF A CIRCLE
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2pieR
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AREA OF A CIRCLE
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pieR squared
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perimeter
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distance around
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area
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amount of space inside
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SURFACE AREA OF A SPHERE
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4 pie R squared
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VOLUME FORMULA
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4/3 pie R cubed
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volume literally means
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amount of space in a 3D object
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30-60-90
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leg = x
hypotenuse = 2x other leg = x square root 3 |
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45-45-90
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legs = x
hypotenuse = x square root 2 |
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area of a sector
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pie R squared (degrees/360)
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perimeter of a sector
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add sides of sector- if sides are 2
2+2 + 2 pie R (2) (degrees/360) |
