# Study sets matching "geometry vocab avondale geo"

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Collinear

Linear Pair

Supplementary angles

Complementary angles

Points that lie on the same line

A pair of adjacent angles whose noncommon sides are opposite r…

Two angles whose sum is 180 degrees

Two angles whose sum is 90 degrees

Collinear

Points that lie on the same line

Linear Pair

A pair of adjacent angles whose noncommon sides are opposite r…

acute angle

right angle

obtuse angle

adjacent angles

an angle that measures less than 90 degrees

an angle that measures 90 degrees

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

Two angles that share a common side and have the same vertex

acute angle

an angle that measures less than 90 degrees

right angle

an angle that measures 90 degrees

Geometry

Euclidean Geometry

Undefined terms

Point

word composed of two Greek terms, "geos" meaning earth and "me…

identifies a geometry which Euclid formalized and which was ad…

terms in Euclidean geometry which mathematicians consider only…

one of the undefined terms; it has only position and has no le…

Geometry

word composed of two Greek terms, "geos" meaning earth and "me…

Euclidean Geometry

identifies a geometry which Euclid formalized and which was ad…

Collinear

Linear Pair

Supplementary angles

Vertical Angles

Points that lie on the same line

A pair of adjacent angles whose noncommon sides are opposite r…

Two angles whose sum is 180 degrees

A pair of opposite congruent angles formed by intersecting lin…

Collinear

Points that lie on the same line

Linear Pair

A pair of adjacent angles whose noncommon sides are opposite r…

Vertical Angles

Supplementary Angles

Right Angle

Complimentary Angles

Formed by 2 intersecting lines or segments. Always congruent.

Two angles that form a line and add up to 180°.

An angle that measures 90°.

Two angles that add up to 90°.

Vertical Angles

Formed by 2 intersecting lines or segments. Always congruent.

Supplementary Angles

Two angles that form a line and add up to 180°.

MIDPOINT

SEGMENT

CONGRUENT SEGMENTS

PARALLEL LINES

The point on a segment exactly halfway between the endpoints o…

Part of the line that consists of two endpoints and all points…

Two segments that are the same size and shape.

Coplanar lines that do not intersect

MIDPOINT

The point on a segment exactly halfway between the endpoints o…

SEGMENT

Part of the line that consists of two endpoints and all points…

Midsegment

Coordinate Proof

Perpendicular Bisector

Equidistant

A segment that connects the midpoints of two sides of a triang…

A proof involving placing geometric figures in a coordinate pl…

A line that is perpendicular to a segment at its midpoint.

Equal distance

Midsegment

A segment that connects the midpoints of two sides of a triang…

Coordinate Proof

A proof involving placing geometric figures in a coordinate pl…

Collinear

Linear Pair

Supplementary angles

Complementary angles

Points that lie on the same line

A pair of adjacent angles whose noncommon sides are opposite r…

Two angles whose sum is 180 degrees

Two angles whose sum is 90 degrees

Collinear

Points that lie on the same line

Linear Pair

A pair of adjacent angles whose noncommon sides are opposite r…

Midsegment

Median

Altitude

Perpendicular Bisector

a segment joining the midpoints of two sides of a triangle

a segment joining the vertex to the midpoint of the opposite s…

A perpendicular segment from a vertex to the line containing t…

A line that is perpendicular to a segment at its midpoint.

Midsegment

a segment joining the midpoints of two sides of a triangle

Median

a segment joining the vertex to the midpoint of the opposite s…

arc length

arc measure

center

central angle

the length of an arc

the measure in degrees of an arc's central angle

a fixed point from which all points on the circle are equidist…

an angle with its vertex at the center of a circle or polygon

arc length

the length of an arc

arc measure

the measure in degrees of an arc's central angle

Colinear points

Adjacent angles

Congruent angles or sides

Supplementary angles

Points that lie on the same line

Two angles that share a common side and have the same vertex

Angles or line segments that have the same measure

Angles whose measure adds up to 180 degrees.

Colinear points

Points that lie on the same line

Adjacent angles

Two angles that share a common side and have the same vertex

Parallel Lines

Perpendicular lines

Skew lines

Parallel Planes

Coplanar lines that do not intersect.... Their equations have the…

Lines that intersect at 90 degree angles.... Their slopes have a…

Lines that are not coplanar, not parallel and do not intersect.

Planes that do not intersect

Parallel Lines

Coplanar lines that do not intersect.... Their equations have the…

Perpendicular lines

Lines that intersect at 90 degree angles.... Their slopes have a…

Collinear

Linear Pair

Supplementary angles

Complementary angles

Points that lie on the same line

A pair of adjacent angles whose noncommon sides are opposite r…

Two angles whose sum is 180 degrees

Two angles whose sum is 90 degrees

Collinear

Points that lie on the same line

Linear Pair

A pair of adjacent angles whose noncommon sides are opposite r…

alpha

angle

arithmetic sequence

clinometer

a Greek letter often used to represent angle measure. Others u…

formed by two rays joined at a common endpoint

an ordered sequence of mathematical terms in which a constant…

a device used to measure angles of elevation and depression

alpha

a Greek letter often used to represent angle measure. Others u…

angle

formed by two rays joined at a common endpoint

MIDPOINT

SEGMENT

CONGRUENT SEGMENTS

PARALLEL LINES

The point on a segment exactly halfway between the endpoints o…

Part of the line that consists of two endpoints and all points…

Two segments that are the same size and shape.

Coplanar lines that do not intersect

MIDPOINT

The point on a segment exactly halfway between the endpoints o…

SEGMENT

Part of the line that consists of two endpoints and all points…

angle-angle similarity

angle

congruent

corresponding sides

if two angles of one triangle are congruent to two correspondi…

in geometric figures, usually formed by two segments with a co…

exactly the same shape and size

sides in two or more figures that are images of each other wit…

angle-angle similarity

if two angles of one triangle are congruent to two correspondi…

angle

in geometric figures, usually formed by two segments with a co…

angle

arc

collinear

noncollinear

intersection of 2 noncollinear rays at common endpoint (vertex)

part of circle defined by 2 endpoints

points that lie on same line

points not on the same line

angle

intersection of 2 noncollinear rays at common endpoint (vertex)

arc

part of circle defined by 2 endpoints

Perpendicular Bisector Theorem

Converse of the Perpendicular Bisector…

Angle Bisector Theorem

Converse of the Angle Bisector Theorem

If a point is on the perpendicular bisector of a segment, then…

If a point is equidistant from the endpoints of a segment, the…

If a point is on the bisector of an angle, then it is equidist…

If a point in the interior of an angle is equidistant from the…

Perpendicular Bisector Theorem

If a point is on the perpendicular bisector of a segment, then…

Converse of the Perpendicular Bisector…

If a point is equidistant from the endpoints of a segment, the…

Point

Line

Plane

Collinear points

Has no dimension. A dot represents a point.

a straight path that extends without end in opposite directions

A two-dimensional flat surface that extends in all directions

points that lie on the same line

Point

Has no dimension. A dot represents a point.

Line

a straight path that extends without end in opposite directions

algebraic proof

axiom

compound statement

conclusion

a method to prove statements using properties that justify eac…

any mathematical statement that serves as a starting point fro…

two statements put together and formed into a sentence... example…

The "q or then" in a conditional statement

algebraic proof

a method to prove statements using properties that justify eac…

axiom

any mathematical statement that serves as a starting point fro…

Line

Collinear points

Coplanar

Segment

A straight, unbroken set of points that goes on forever. It ha…

A set of points that lie on the same line

Points, lines, or segments that lie on the same plane

A part of a line with two endpoints.

Line

A straight, unbroken set of points that goes on forever. It ha…

Collinear points

A set of points that lie on the same line