Math

Question 1

angle

Answer 1

a geometric figure formed by two rays called sides having a common endpoint called the vertex

Angles are classified by their measures as right angles (exactly 90°); acute angles (less than 90°), and obtuse angles (greater than 90° and less than 180°).

Question 2

chord

Answer 2

Definition and illustration (if applicable):
a line segment whose endpoints lie on a circle
a diameter is a chord that passes through the center of the circle

Question 3

circumference

Answer 3

distance around a circle

Question 4

coordinate plane

Answer 4

a grid formed by two axes that intersect at the origin
The axes divide the coordinate plane into four quadrants. origin–intersection of the horizontal and vertical axes in the coordinate plane described by the ordered pair (0, 0)

Question 5

denominator

Answer 5

the number of same-size parts in a whole or set

Question 6

diameter

Answer 6

a chord that passes through the center of a circle

Question 7

elasped time

Answer 7

the amount of time that passes between two points in time

Question 8

factor

Answer 8

a number that is multiplied by another number to find a product

Question 9

frequency

Answer 9

the number of times an outcome occurs

Question 10

line plot

Answer 10

A line plot shows the spread of data and each piece of data is represented by an x

Question 11

greatest common factor

Answer 11

the largest number that divides evenly into two or more numbers

Question 12

interesting lines

Answer 12

lines that meet or cross in exactly one point

Question 13

kite

Answer 13

a quadrilateral with two pairs of adjacent sides
congruent but not four congruent sides

Question 14

least common denominator

Answer 14

least common multiple of two or more denominators

Question 15

least common multiple

Answer 15

the smallest multiple that each of two or more numbers share

Question 16

likelihood (of an event)

Answer 16

the chance or probability that an event occurs

Question 17

line graph

Answer 17

a graph using line segments to connect the graphed data points

Question 18

mean

Answer 18

a measure of central tendency; the arithmetic average; a mathematical representation of the typical value of a series of numbers, computed as the sum of all the numbers in the series divided by the count of all numbers in the series.

Example: Suppose you wanted to know what the arithmetic mean of a stock’s closing price was over the past week. If during the five-day week the stock closed at $14.50, $14.80, $15.20, $15.50, and then $14.00, its arithmetic mean closing price would be equal to the sum of the five numbers ($74.00) divided by five, or $14.80.

Question 19

median

Answer 19

a measure of central tendency; in a set of ordered data, the middle value
If the data are shown with a histogram the “mode” is simply the value which corresponds to the highest point(s) on the curve.

Question 20

metric measurement system

Answer 20

a system of measurement based on multiples of 10; basic units are meter (length), gram (mass), and liter (volume or capacity)

Question 21

mode

Answer 21

a measure of central tendency; the value(s) that occurs most often

Question 22

numerator

Answer 22

a representation of the number of same-size parts being considered in terms of the whole

Question 23

ordered pair

Answer 23

Identifies a location in a coordinate plane (i. e., (3, 5))
The first number in the ordered pair indicates the distance of the point from the vertical axis. The second number in the ordered pair indicates the distance of the point from the horizontal axis.

Question 24

parallel lines

Answer 24

coplanar lines that do not intersect

Question 25

parallelogram

Answer 25

a quadrilateral with both pairs of opposite sides parallel

Question 26

perpendicular

Answer 26

lines that intersect to form right angles

Question 27

place value

Answer 27

the value a digit represents depending on its place in the number

(tenth, hundredth, thousandth)

Question 28

plane

Answer 28

described as a flat surface that extends infinitely in all directions; has two dimensions

Question 29

polygon

Answer 29

a two-dimensional, simple, closed geometric figure that has line segments as sides

Question 30

quadrant

Answer 30

one of four portions into which a plane is divided by the horizontal and vertical axes

Question 31

radius

Answer 31

a line segment from the center of a circle to any point on the circle

Question 32

range (of a set of data)

Answer 32

a measure of variation; the difference between the greatest and least values in a data set

Question 33

rational number

Answer 33

any number that can be written as a ratio (fraction, decimal)

Question 34

rhombus

Answer 34

a parallelogram with all sides congruent

Question 35

trapezoid

Answer 35

a quadrilateral with exactly one pair of parallel sides