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135 Cards in this Set

  • Front
  • Back
Acute Angle
Measures greater the 0 degrees and less the 90 degrees
Adjacent Angles
are two angles in the same plane with a common vertex and a common side
Angle Bisector
is a ray that divides an angles into two congruent angles
Area
is the numbers of nonoverlapping square units of a given size that exactly cover the figure
Base
can be the side of a triangle
Between
the point that is in the middle of two others
Bisect
the line that divides the segment
Circumfrence
is the distance around the circle
Collinear
Points that lie in the same line
Complementary Angles
are two angles whose measures have a sum of 90 degrees
Congruent Angles
are angles that have the same measures
Congruent Segments
are segments that have the same length
Construction
is a way of creating a figure that is more precise
Coordinate
a point corresponds to one and only one number on the ruler
Coordinate Plane
is a plane that is divided into four regions by a horizontal line and a vertical line
Coplanar
Points that lie in the same plane
Degree
it is the measure in which angles and circumfrence plays
Diameter
is a degment that passes through the center of the circle and whose endpoints are on the circle
Distance
between any two points is the absolute value of the difference of the coordinates
Endpoint
is a point at one end of a segment or starting point of a ray
Exterior of an Angle
is the set of all points outside the angle
Height
is a segment of a vertex that forms a right angle with a line containing the base
Hypotenuse
the side acriss for the right angle that stretches form one leg to the other
Image
the resulting figure
Interior of an Angle
the set of all points between the sides of the angle
Leg
the two sides that form the right angle
Length
the distace between two points
Line
is a straight path that has no thickness and extends forever
Linear Pair
of angles is a pair of adjacent whose noncommon sides are opposite rays
Measure
of an angle is usually in degrees
Midpoint
the point in which the bisect and the line meet
Obtuse Angle
measure greater than 90 degrees and less than 180 degrees
Opposite Rays
are two rays that have a common endpoint and form a line
Perimeter
the sum of the side lengths of the figure.
Pi
a greek letter that is equivelent to 3.14 or 22/7
Plane
is a flat surface that has no thicknes abd extends forever
Point
Names a locarion and has no size
Postulate
is a statement that is accepted as true without a proof
Preimage
the original figure
Radius
is a segment of a circle is the distance around the circles
Ray
is a part of a line that start at an endpoint and extends forever iin one direction
Reflection
is a rtransformation across a line, called the line of reflection
Right Angle
measures 90 degrees
Rotation
is a transformation about a point called the center of rotaion
Segment
is the part if a line consisting of two points and all points between them
Segment Bisector
is any ray, segment, or line that intesects a segment at its midpoint
Straight Angle
formed by two opposite rays and measures 180 degrees
Supplementary Angles
are two angles whose measures have a sum of 180 degrees
Transformation
is a change in the position, sizem ir shape of a figure
Translation
is a transformationin which all the points of a figure move the same distance in the same direction
Undefined Term
Vertex
the common endpoint in which an angle is set
Vertical Angles
are two nonadjacent angles formed by two intersecting lines
Conclsuion
is the part of a conditional statement following the worn then
Conditional statement
is a statement that can be written in the form if… then…
conjecture
A statement you believe to be true based on inducive reasoning
Contrapositive
is the statement formed by both exchanging and negating the hypothesis and conclusion
Converse
is the statement formed by exchanging the hypothesis and the conclusion
Counterexample
An example one gives to prove if the conjecture is not true
Deductive Reasoning
is the process of using logic to draw conclusion from given facts
definition
Flowchart Proof
Hypothesis
is the part… of a conditional statement following the work if
Inductive Reasoning
is the process of reasoning that a rule or statement is true because specific cases are true
Invese
is the statement formed by negating the hypothesis and conclusion
Logically Equivalent Statements
related conditional statements that have the same truth value
Negation
… is "not…," written as~…
Paragraph Proof
Polygon
Proof
Quadraleteral
a 4 sided quadraleteral
Theorem
Triangle
and parealleogram with three sides
Truth Value
If a conditional statement is true
Two-Column Proof
Conclsuion
is the part of a conditional statement following the worn then
Conditional statement
is a statement that can be written in the form if… then…
conjecture
A statement you believe to be true based on inducive reasoning
Contrapositive
is the statement formed by both exchanging and negating the hypothesis and conclusion
Converse
is the statement formed by exchanging the hypothesis and the conclusion
Counterexample
An example one gives to prove if the conjecture is not true
Deductive Reasoning
is the process of using logic to draw conclusion from given facts
definition
Flowchart Proof
Hypothesis
is the part… of a conditional statement following the work if
Inductive Reasoning
is the process of reasoning that a rule or statement is true because specific cases are true
Invese
is the statement formed by negating the hypothesis and conclusion
Logically Equivalent Statements
related conditional statements that have the same truth value
Negation
… is "not…," written as~…
Paragraph Proof
Polygon
Proof
Quadraleteral
a 4 sided quadraleteral
Theorem
Triangle
and parealleogram with three sides
Truth Value
If a conditional statement is true
Two-Column Proof
Alternate exterior angles
lie on opposite sides of the transveral
Alternate interior angles
are nonadjeacent angles that line on opposite sides of the transversal
corresponding angles
lie on the same side of thie transeversal
distance for a point to a line
as the length of the perpendicular segment for the point of a line
parallel lines
are coplaner and do not intersect
parallel planes
are planes that do not intersect
perpendicular bisector
of a segment is a line perpendicular to a segment at the segments midpoint
perpendicular lines
intersect at 90 degree angles
point-slope form
of a line is M is the given point on the line
rise
is the difference in the y-value of two points on a line
run
is the difference in the x-value of two points on a line
skew lines
are not coplanor. Skew l;ines are not parallel and do not intersect
slope
of a line is the ration of rise to run
slope-intercept form
of a line is y=mx+b where m is the sllope and b is the y-intercept
transversal
is a line that interscts two coplanor lines a two different points
Acute triangle
three acute angles
auxillary line
is a line that is added to a figure to aid in a proof
base
base angle
congruent pol;ygones
if and only if their corresponding angles and sides are congruent
coordinate proof
corollary
is a theorem whose proof folllows directly for another theorem
corresponding angles
are in the same positions in polygons with and equalnumber of sides
corresponding sides
are in the same positions in polygons with and equalnumber of sides
CPCTC
Corresponding parts of congruent triangles congruent
Equilangular Triangle
three congruent acute angles
Equilateal triangle
three congruent sides
exterior
is the set of all points outside the figure
included side
is thew common side of two consecutive angles
interior
is the set of all points inside the figure
isosles triangle
at least two congruient sides
obtuse triangle
one obtuse angle
right triangle
one right angle
scalene triangle
no congruent sides
vertex angle