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point

line

line segment

plane

an exact location in space; named by a capital letter

a straight path that extends forever in opposite directions;…

a part of a line with two endpoints; named by the two endpoints

a flat surface that extends without end in all directions

point

an exact location in space; named by a capital letter

line

a straight path that extends forever in opposite directions;…

Right Angle

Acute Angle

Obtuse Angle

Straight Angle

An angle that is exactly 90 degrees.

An angle that is less than 90 degrees.

An angle that measures more than 90 degrees but less than 180…

An angle that measures exactly 180 degrees.

Right Angle

An angle that is exactly 90 degrees.

Acute Angle

An angle that is less than 90 degrees.

Line

Line segment (Interval)

Distance

Ray

A set of points that extends in two opposite directions witho…

A part of a line with two endpoints

Length of a line segment

A part of a line that starts at one endpoint and extends fore…

Line

A set of points that extends in two opposite directions witho…

Line segment (Interval)

A part of a line with two endpoints

point

line

line segment

plane

an exact location in space; named by a capital letter

a straight path that extends forever in opposite directions;…

a part of a line with two endpoints; named by the two endpoints

a flat surface that extends without end in all directions

point

an exact location in space; named by a capital letter

line

a straight path that extends forever in opposite directions;…

Line

Line segment (Interval)

Distance

Ray

A set of points that extends in two opposite directions witho…

A part of a line with two endpoints

Length of a line segment

A part of a line that starts at one endpoint and extends fore…

Line

A set of points that extends in two opposite directions witho…

Line segment (Interval)

A part of a line with two endpoints

right angle

obtuse angle

straight angle

complimentary angles

An angle that measures exactly 90 degrees.

An angle that is >90 degrees and <180 degrees.

An angle that measures exactly 180 degrees.

Angles whose measure adds up to 90 degrees.

right angle

An angle that measures exactly 90 degrees.

obtuse angle

An angle that is >90 degrees and <180 degrees.

Angle

Intersecting lines

Parallel lines

Plane

-Two rays that have the same endpoint. ... -This endpoint is cal…

Lines that meet at one point. (example: × )

Lines that do not intersect but are in the same plane. (examp…

An endless, flat surface that is named by any three points no…

Angle

-Two rays that have the same endpoint. ... -This endpoint is cal…

Intersecting lines

Lines that meet at one point. (example: × )

Acute Angle

Obtuse Angle

Right Angle

Straight Angle

an angle that measures less than 90 degrees

An angle between 90 and 180 degrees... An angle more than 90 deg…

an angle that measures 90 degrees

an angle that measures 180 degrees

Acute Angle

an angle that measures less than 90 degrees

Obtuse Angle

An angle between 90 and 180 degrees... An angle more than 90 deg…

Line

Line Segment

Ray

Point

A set of points that extend without end in either direction,…

Part of a line with two endpoints

Part of a line that extends in one direction and has one endp…

One exact location, a dot

Line

A set of points that extend without end in either direction,…

Line Segment

Part of a line with two endpoints

Parallel

Perpendicular

Intersect

Right Angle

Lines in the same plane that do not intersect.

Two lines that intersect at right angles.

To share a point or points.

An angle that forms a square corner and measures 90 degrees.…

Parallel

Lines in the same plane that do not intersect.

Perpendicular

Two lines that intersect at right angles.

Vertical Angles

Supplementary Angles

Complementary Angles

Perpendicular Lines

2 angles opposite each other formed when 2 lines intersect

Angles whose measures sum to 180

Angles whose measures sum to 90

Lines that intersect to form a right angle

Vertical Angles

2 angles opposite each other formed when 2 lines intersect

Supplementary Angles

Angles whose measures sum to 180

line

line segment

ray

point

a line that goes on forever in both directions

part of a line with two endpoints

a line that has one endpoints and goes on forever in the othe…

a location of a spot on a flat plane

line

a line that goes on forever in both directions

line segment

part of a line with two endpoints

Right Angle

Acute Angle

Obtuse Angle

Straight Angle

An angle that is exactly 90 degrees.

An angle that is less than 90 degrees.

An angle that measures more than 90 degrees but less than 180…

An angle that measures exactly 180 degrees.

Right Angle

An angle that is exactly 90 degrees.

Acute Angle

An angle that is less than 90 degrees.

point

line

line segment

ray

An exact location in space. It is usually labeled with a capi…

A straight path that goes on infinitely in both directions.

A straight path between 2 points, called the endpoints. It is…

A straight path that goes on infinitely in one direction. It…

point

An exact location in space. It is usually labeled with a capi…

line

A straight path that goes on infinitely in both directions.

Line

Parallel Lines

Perpendicular Lines

Line segment

An infinate set of points extending endlessly in both directi…

2 lines that never intersect (in same plane)

2 lines that intersect to form right angles (in same plane)

Set of points consisting of two points on a line, called endp…

Line

An infinate set of points extending endlessly in both directi…

Parallel Lines

2 lines that never intersect (in same plane)

line segment

point

ray

segment

has definite starting & end points

used to name; usually a capital letter

has a definite starting point & continues without end in the…

part of a line with two endpoints

line segment

has definite starting & end points

point

used to name; usually a capital letter

angle

line

line segment

parallel

A figure formed by two lines or line segments that meet at an…

A straight path that goes on forever in opposite directions.

Part of a line that has two endpoints.

Lines, line segments, and rays that never intersect.

angle

A figure formed by two lines or line segments that meet at an…

line

A straight path that goes on forever in opposite directions.

acute

angle

degree

intersecting lines

describes an angle less than 90 degrees

the name of what is formed by two rays or lines that intersect

unit of measurement; there are 360 degrees in a circle

two lines that cross at a point

acute

describes an angle less than 90 degrees

angle

the name of what is formed by two rays or lines that intersect

Right Angles

Straight Angles

Complementary

Bisects

an angle that measures 90 degrees

an angle that measures 180 degrees

2 angles measurements that sums 90 degrees

a line or point that divides a figure into two congruent parts

Right Angles

an angle that measures 90 degrees

Straight Angles

an angle that measures 180 degrees

point

line segment

ray

line

a location in space

a straight path between two points, called its end points

a straight that goes on forever in one direction from an endp…

a straight path that goes on forever in both directions

point

a location in space

line segment

a straight path between two points, called its end points

Point

Line

Line segment

Ray

An exact location in space . A (point A)

A straight path of points that goes on forever

A part of a line with two endpoints

A part of a line that starts at one endpoint and extends fore…

Point

An exact location in space . A (point A)

Line

A straight path of points that goes on forever

perpendicular

Parallel lines

Right angle

Acute angle

Two lines that intersect to make a right angle

Lines that are always the same distance apart. They do not in…

An angle that is 90 degrees (It makes a square in the corner).

an angle that measures less than 90 degress (smaller than a r…

perpendicular

Two lines that intersect to make a right angle

Parallel lines

Lines that are always the same distance apart. They do not in…

Parallel lines

Supplementary angles

Diagonal Lines

Coplanar Lines

Coplanar lines that will never intersect

Two angles whose sum is 180 degrees

A segment that connects two non-consecutive vertices

Anything that lies on the same plane

Parallel lines

Coplanar lines that will never intersect

Supplementary angles

Two angles whose sum is 180 degrees

alternate interior angles (example fro…

transversal (example from diagram)

parallel lines (example from diagram)

lines that form angle 2 (example from…

<2 and <7

line z

lines x and y

lines x and z

alternate interior angles (example fro…

<2 and <7

transversal (example from diagram)

line z

point

line segment

ray

line

an exact location in space

a straight path joining two points

a straight path that extends infinitely from a point called a…

a straight path that extends infinitely in opposite directions

point

an exact location in space

line segment

a straight path joining two points

point

line segment

ray

line

an exact location in space

a straight path joining two points

a straight path that extends infinitely from a point called a…

a straight path that extends infinitely in opposite directions

point

an exact location in space

line segment

a straight path joining two points

Substitution property of equality

Addition property of equality

Subtraction property of equality

Multiplication property of equality

if a=b a can be a substitute for b in any equation

if a=b then a+c=b+c

if a=b then a-c=b-c

if a=b then ac = bc

Substitution property of equality

if a=b a can be a substitute for b in any equation

Addition property of equality

if a=b then a+c=b+c

If Parallel then Corresponding Angles…

If Parallel then Alternate Interior An…

If Parallel then Alternate Exterior An…

If Parallel then Consecutive Interior…

Postulate

Theorems

Theorems

Theorems

If Parallel then Corresponding Angles…

Postulate

If Parallel then Alternate Interior An…

Theorems

Parallel Lines

Skew Lines

Parallel Planes

Transversal

Coplanar lines that do not intersect at any point

Noncoplanar lines that are not parallel but do not intersect

Planes that do not intersect at any point

A line that intersects two or more coplanar lines at distinct…

Parallel Lines

Coplanar lines that do not intersect at any point

Skew Lines

Noncoplanar lines that are not parallel but do not intersect

Ray

Parallel lines

Intersecting lines

Angle

a part of a line it begins at one end point and extends forev…

lines in a plane that do not intersect

lines that cross each other at exactly one point

a figure formed by 2 rays that meet at a common end point

Ray

a part of a line it begins at one end point and extends forev…

Parallel lines

lines in a plane that do not intersect

Line

Line segment (Interval)

Distance

Ray

A set of points that extends in two opposite directions witho…

A part of a line with two endpoints

Length of a line segment

A part of a line that starts at one endpoint and extends fore…

Line

A set of points that extends in two opposite directions witho…

Line segment (Interval)

A part of a line with two endpoints

plane

complementary angles

line segment

supplementary

a flat surface of points that goes on forever in all directions

two angles whose sum measures 90 degrees

an infinite number of points that has two distinct end points

two angles whose sum measures 180 degrees

plane

a flat surface of points that goes on forever in all directions

complementary angles

two angles whose sum measures 90 degrees

Corresponding Angles

vertical angles

alternate interior angles

alternate exterior angles

A pair of angles on the same side of the transversal and the…

Nonadjacent angles formed by two intersecting lines and have…

A pair of angles that are on opposite sides of the transversa…

A pair of angles on opposite sides of transversal but on the…

Corresponding Angles

A pair of angles on the same side of the transversal and the…

vertical angles

Nonadjacent angles formed by two intersecting lines and have…

point

line

line segment

collinear points

a location

2 or more points joined with no thickness or width that exten…

part of a line that stops at two endpoints

points that lie on the same plane

point

a location

line

2 or more points joined with no thickness or width that exten…