Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# WGU IMC4 Math terms

### WGU Math Stack #71366

Question | Answer |
---|---|

weight | The measure of force of objects exerted by gravitational pull. Used on Earth with mass interchangeably. |

Rectangle Perimeter | P=2l+2w |

area | A measure of the interior of a planar (flat) figure. |

volume | A measure of the interior of a solid; the # of unit cubes necessary to fill the interior of such a solid. |

perimeter | The distance around a figure. |

mass | A quantity of matter, as opposed to weight which is a force exerted by gravitational pull. |

skip counting | Mathematic technique for teaching multiplication. |

rote counting | Counting by memory, but without understanding of actual concrete objects. |

rounding | identify place value, if # to the right is 5 or higher, round place value # up 1 and change all numers to the right of it to zeros. If # to the right is less than 5 than leave place value # alone and change all #s to right to zero. |

prime numbers | Divisible only by 1 and itself. |

Rectangle Area | A=lw |

Triangle Perimeter | P=a+b+c |

Triangle Area | A=1/2 bh |

Circle Perimeter | C=2πr |

Circle Area | A=πr² |

Rectangular solid total surface area | 2lw+2lh+2wh |

Rectangular solid volume | lwh |

Right circular cylinder solid total surface area | 2πr(h + r) |

Right circular cylinder solid volume | πr²h |

Pythagorean Theorum | In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. a²+b²=c² |

Right angle | always 90° |

Sphere total surface area | A=4πr² |

Sphere volume | 4/3πr² |

obtuse | angle measuring more than 90° and less than 180° |

acute | angle measuring less than 90° |

theorem | A statement that can be proved using definitions, postulates, and previously proven theorems. |

straight angle | 180° |

supplementary angles | two positive angles whose sum is 180° |

transversal | a line that intersects two or more lines in the same plane at different points. |

trapezoid | a quadrilateral with only two pair of opposite sides parallel. |

tangent | a line that lies in the same plane as a circle and intersects the circle in exactly one point. |

corresponding angles | angles that occur in the same relative position in each group of four angles created when a tranversal intersects two lines. |

adjacent angles | any two angles that share a common vertex and a common side that seperates them. |

altitude of triangle | the perpendicular line segment from the vertex to the side opposite. |

angle bisector | a ray that divides an angle into two equal angles. |

circumference | distance around a circle |

collinear points | points that lie on the same line |

complementary angles | two positive angles whose sum is 90° |

congruent triangles | triangles that have exactly the same size and shape |

corresponding parts of triangles | the parts of triangles that are in the sames relative positions. |

cube | a square right prism whose lateral edges are the same length as a side of the base. |

cylinder | prism like solid whose bases are circles. |

decagon | ten sided polygon |

degree | measure of an angle |

equiangular triangle(polygon) | triangle with all equal angles. |

equilateral triangle(polygon) | triangle with all sides equal in measure. |

hexagon | a six sided polygon |

hypotenuse | the side opposite the right angle in a right triangle. |

isosceles triangle | a triangle that has at least two sides that are congruent. |

isosceles trapezoid | trapezoid where two legs have equal measures. |

legs of a right triangle | the two sides other than the hypotenuse |

legs of an isosceles triangle | the two equal sides. |

legs of a trapezoid | the nonparallel sides |

linear equation | an equation whose graph is a straight line |

octagon | an eight sided polygon |

parallel lines | two lines that lie on the same plane and never intersect. |

parallelogram | any quadrilateral with both pairs of opposite sides parallel. |

pentagon | a five sided polygon. |

perimeter | the distance around a figure. |

perpendicular lines | lines that intersect to form two right angles. |

ploygon | a closed planar figure with three or more sides, but not infinately many. |

postulate | a statement that is assumed to be true (without proof) |

quadrants | the four regions of the coordinate plane seperated by the x-axis and the y-axis. |

ratio of two numbers a and b | the fraction a/b usually expressed in simplest form. Also denoted a : b. |

rhombus | a quadrilateral with all four sides equal. |

scalene triangle | triangle in which all three sides have different lengths. |

septagon | a seven sided polygon |

x-axis | a horizontal line used to help locate points in a plane. |

y-axis | a vertical line used to help locate points in a plane. |

x-coordinate | the first term of an ordered pair. |

x-intercept | the point where a graph intercepts the x-axis. |

triangle | 3 sided polygon. |

square | a quadrilateral in which all the angles are right angles and all the sides are equal. |

y- coordinate | the second term of an ordered pair. |

y-intercept | the point where a graph intersects the y- axis. |

quadrilateral | four sided polygon |

Order of operations | parenthesis, exponents, multiplication & division (occuring left to right) addition & subtraction. Please Excuse My Dear Aunt Sally |

The sum of a number and 4 | x+4 |

the quotient of a number and 4 | x/4 |

a number quadrupled | 4x |

the product of 4 and a number | 4x |

a number decreased by 4 | x-4 |

four more than a number | x+4 |

A number subtracted from 4 | 4-x |

the sum of the interior angles of a triangle | 180° |

the numerical value when direction or sign is not considered. | absolute value |

associative property | grouping of elements does not make any difference in the outcome. (only for multiplication and addition) |

binominal | an algebraic expression consisting of two terms. |

canceling | in multipication of fractions, dividing the same number into both a numerator and a denominator |

cube root | the number that when multplied by itself twice gives you the original number. Ex. 5 is the cube root of 125. also expressed ³√125=5 |

denominator | everything below the fraction bar in a fraction |

distributive property | the process of distributing the number on the outside of the parenthesis to each number on the inside. a(b+c)=ab+ac |

exponent | a numeral used to indicate the power of a number. |

factor | to find two or more quantities whose product equals the original quantity. |

integer | a whole number, either positive, negative, or zero |

monomial | an algebraic expression consisting of only one term. |

numerator | everything above the fraction bar in a fraction. |

polynomial | an algebraic expression consiting of two or more terms. |

ratio | a method of comparing two or more numbers. a:b, a/b |

repeating decimal | a decimal fraction that continues forever repeating a number or block of numbers. |

simplify | to combine several or many terms into fewer terms. |

square root | the number that when multiplied by itself, gives you the original number. 5 is the square root of 25. √25=5. |

improper fraction | fraction where the numerator is greater than the denominator. ex. 3/2 |

12 inches= | one foot |

3 feet= | one yard |

36 inches= | one yard |

100 centimeters= | one meter |

a kilometer is about | .6 mile |

1,000 kilograms= | 1 metric ton |

1,000 milliliters= | one liter |

kilo | thousand |

hecto | hundred |

deka | ten |

deci | tenth |

centi | hundredth |

milli | thousandth |

2cups= | 1 pint |

2pints= | 1 quart |

4 quarts= | 1 gallon |

16oz= | 1 pound |

365 days= | 1 year |

52 weeks= | 1 year |

10 years= | decade |

100 years= | century |

How do you find the measure of an exterior angle in a triangle? | Add the measure of the two remote interior(non-adjacent angles) ex. interior angle a=43°, and interior angle b=86°so exterior angle d=129° |

change a fraction to a decimal | divide the numerator by the denominator and add necessary zeros. ex. 5/8=.625 |

what is a correct fraction expression of 0.16666? | 1/6 |

How do you arrange decimals in sequence? | add zeros to change each number to the ten-thousandths, then align decimals to compare |

Change a decimal to a percent | move the decimal point two places to the right. ex .55=55% |

change percent to a decimal | move the decimal point two places to the left ex. 250%=2.50=2.5 |

change fractions to percents | change to a decimal then change decimal to a percent. ex. 1/2=.5=50% |

change percents to fractions | drop %, write over 100, reduce if necessary. ex. 13%=13/100 |

mean | total the items and then divide by the number of items. |

mode | The set, class, or classes that appear most, or whose frequency is the greatest. |

median | in a set of numbers it is the middle numer if there is an odd number of items. For an even number of items find the mean of the middle two numbers. |

Permutations | If there are a number of choices to make and the choices are dependent upon order, then _____________ are involved. |

Combinations | If there are a number of successive choices to make and the choices are independent of each other (order not important), then the total number of possible choices are ___________. |

probability formula | P=number of favorable outcomes/number of possible outcomes |

What is the probability that on two consecutive rolls of a die the numbers will be 5 and 6? | 1/36 |

What is the probability of tossing tails four consecutive times with a two-sided fair coin? | 1/16 |

What is the arithmetic mean, mode, and median of the following numbers : 3,5,4,3,4,4,6,7,2? | 42/9, 4, and 4 |

What is the mean weight of seven men if five men weigh 160 pounds and two men 180 pounds? | 165 5/7 pounds |

range | The difference between the largest and the smallest number in a set of numbers. |

Created by:
tifferdu