# geometry Flashcards

Browse 500 sets of geometry flashcards

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…

Ordered Pair

X-Coordinate

Y-Coordinate

Quadrant

Points on the coordinate plane (x,y)

The first number in an ordered pair that correspongs to a numb…

The second number in an ordered pair that corresponds to a num…

The four regions of the coordinate plane created by the x-axis…

Ordered Pair

Points on the coordinate plane (x,y)

X-Coordinate

The first number in an ordered pair that correspongs to a numb…

Collinear

Linear Pair

Segment addition postulate

Congruent

Points that lie on the same line

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

If B is between A and C, then AB + BC = AC

Having the same size and shape

Collinear

Points that lie on the same line

Linear Pair

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

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

complementary 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 whose measures add to 90 degrees.

acute angle

an angle that measures less than 90 degrees

right angle

an angle that measures 90 degrees

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…

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

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…

Segment Addition Postulate

Midpoint

Segment Bisector

Angle Additon Postulate

if three points A, B, and C are collinear (on the same line) a…

A point that divides the segment into two congruent (pieces th…

a point, line, ray or other segment that intersects a segment…

If point B is in the interior of <AOC then m<AOB+m<BOC=m<AOC

Segment Addition Postulate

if three points A, B, and C are collinear (on the same line) a…

Midpoint

A point that divides the segment into two congruent (pieces th…

plane

coplanar

plane geometry

solid geometry

a flat, two-dimensional surface that extends infinitely in all…

lying in the same plane

the study of figures that all lie in one plane

the study of objects that have three dimensions

plane

a flat, two-dimensional surface that extends infinitely in all…

coplanar

lying in the same plane

right triangle

obtuse triangle

equilateral triangle

isosceles triangle

A triangle that has a 90 degree angle.

A triangle where one angle measures over 90 degrees.

A triangle with three congruent sides

A triangle with 2 congruent sides

right triangle

A triangle that has a 90 degree angle.

obtuse triangle

A triangle where one angle measures over 90 degrees.

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

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…

right triangle

obtuse triangle

equilateral triangle

isosceles triangle

A triangle that has a 90 degree angle.

A triangle where one angle measures over 90 degrees.

A triangle with three congruent sides

A triangle with 2 congruent sides

right triangle

A triangle that has a 90 degree angle.

obtuse triangle

A triangle where one angle measures over 90 degrees.

point

line

line segment

ray

a location in space

straight part of points that continues infinitely in both dire…

A part of a line with two endpoints

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

point

a location in space

line

straight part of points that continues infinitely in both dire…

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…

point

line

line segment

ray

a 0 dimensional geometric object that labels a position in spa…

a 1 dimensional geometric object that continues in both direct…

A part of a line with two endpoints

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

point

a 0 dimensional geometric object that labels a position in spa…

line

a 1 dimensional geometric object that continues in both direct…