Section 1
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octagon
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Last updated
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Date created
Mar 1, 2020
Cards (147)
Section 1
(50 cards)
octagon
An eight-sided polygon
quadrilateral
A four-sided polygon.
obtuse angle
An angle that is larger than a right angle but less than a straight angle.
equiangular triangle
A triangle in which the measure of all angles are equal.
pi
The exact numberof times the diameter of circle will go around the circle, which is approximately 3.14.
right triangle
A triangle that has a right angle.
perimeter
The measure (or distance) around a polygon.
rectangle
A parallelogram with four right angles.
Polygon
Poly = more than one Gonon = angle a simple, closed, flat geometric figure whose sides are line segments.
straight angle
Two right angles form a straight angle.
negative number
Any number less than zero.
dodecagon
A twelve-sided polygon.
radius
The distance from the center of a circle to any point on the circle.
scalene triangle
A triangle in which none of the sides are equal in length.
trapezoid
A quadrilateral that has exactly two parallel sides.
isosceles triangle
A triangle that has at least two sides of equal length.
acute angle
An angle that is smaller than a right angle.
perpendicular
Two lines that make a square corner at the point of intersection.
real number
All negative or positive numbers and zero.
positive number
Any number greater than zero.
acute triangle
A triangle in which all angles measure less than 90 degrees.
convex polygon
Any polygon that does not have an indentation.
undeagon
An eleven-sided polygon.
zero
Used to describe a physical distance of no magnitude or an empty set.
natural (or counting) numbers
Numbers that are used to count objects or things.
square
A rhombus with four right angles.
pentagon
A five-sided polygon.
diameter
The radius of a circle times two.
heptagon
A seven-sided polygon.
irrational number
A number with an infinite number of digits after the decimal point.
concave polygon
A polygon with an indentation (or cave).
mixed number
The sum of a whole number and a fraction.
regular polygon
A polygon in which all segments have the same length and all angles have the same measure.
triangle
A three-sided polygon.
equilateral triangle
A triangle in which the length of all sides are equal.
decimal system
The system of numeration that is used to designate numbers.
vertex
The endpoint of each segment in a polygon.
side
Each segment of a polygon.
equilateral polygon
A polygon in which all segments (or sides) are the same length.
equiangular polygon
A polygon in which all angles have the same measure.
right angle
The angle made by perpendicular lines.
180 degrees
The sum of measures of the three angles in any triangle is 180 degrees.
rhombus
An equilateral parallelogram.
obtuse triangle
A triangle in which one the angles measures more than 90 degrees.
decagon
A ten-sided polygon.
circumference
The perimeter of a circle.
nonagon
A nine-sided polygon.
hexagon
A six-sided polygon.
parallelogram
A quadrilateral that has two pairs of parallel sides.
point of intersection
The point where two lines cross.
Section 2
(50 cards)
Volume of a rectangular prism
V=lwh
factor
The numbers in a multiplication problem.
area of a rectangle
A= length x width
opposite of a number
on a number line, a number that is the same distance away from zero in the other direction
area of a circle
A = πr²
quotient
The result of a division problem.
Volume of a sphere
V = 4/3πr³
Volume of a cylinder
V=πr²h
area of a square
A= side²
Surface Area of a Triangular Prism
SA = lw + 2ls + wh
equation
an algebraic statement consisting of two expressions connected with an = sign
Surface area of a cube
6s²
Area of a trapezoid
A=1/2h(b1+b2)
absolute value
In reference to a number, the positive number that describes the distance on a number line of the graph of the number from the origin.
Surface Area of a Circular Cone
SA = πr² + πrl
Surface Area of a Regular Pyramid
S=B+1/2Pl where B is the area of the base, P is the perimeter of the base, and l is the slant height
minuend
The first number in a subtraction problem.
unit multipliers
Fractions used to change the units of a measurement.
square unit
a square with sides one unit long.
Volume of a pyramid
V=1/3Bh
positive real number
Any number that can be used to describe a physical distance greater than zero.
Surface Area of a Cylinder
SA=2πr²+2πrh
difference
The result of subtraction problem.
dividend
The first number in a division problem.
Surface area of a rectangular prism
SA = 2lw + 2lh + 2wh
Circumference of a circle
C=2πr
fraction
A division problem represent as such: 3/4.
product
The result of a multiplication problem.
Volume of a cube
V=s³ or L x W x H
Area of a parallelogram
A=bh
four basic math operations
Addition, subtraction, multiplication, and division
sum
The result of an addition problem.
Volume of a triangular prism
V = (1/2) L x W x H
Surface area of a sphere
4πr²
denominator
The number that is on the bottom in a fraction.
algebraic addition
If a and b are real numbers, then a - b = a +(-b)
divisor
The second number in a division problem.
lateral Surface Area of a Circular Cone
LSA = πrl
numerator
The number that is on top in a fraction.
Volume of a circular cone
V = 1/3 πr₂h
absolute value of zero
zero
Lateral surface area of a cylinder
2πrh
subtrahend
The second number in a subtraction problem.
area of a triangle
A= 1/2bh
signed numbers
Numbers designated as either negative or positive by prefixing the number with either a (-) or a (+).
Volume of a sphere
V=4/3πr³
set
Designates a well-defined collection of numbers.
lateral surface area of a regular pyramid
Sum of the areas of it's lateral faces LSA = 1/2pl p=perimeter l= slant height
addend
Each number in an addition problem.
negative real number
Any number that can be used to describe the negative counterpart of a positive real number.
Section 3
(47 cards)