# Study sets matching "vocab geometry flashcards"

Point

Plane

Line Segment

Ray

An exact location.

A flat surface that extends without end in all directions.

A portion of a line with two endpoints.

A portion of a line that extends in one direction.

Point

An exact location.

Plane

A flat surface that extends without end in all directions.

Quadrilateral

Trapezoid

Parallelogram

Rectangle

You are a flat shape with four straight sides. I am the most o…

you are a four sided figure with one pair of parallel sides.

You are a 4-sided flat shape with straight sides where opposit…

You are a 4-sided flat shape with straight sides where all int…

Quadrilateral

You are a flat shape with four straight sides. I am the most o…

Trapezoid

you are a four sided figure with one pair of parallel sides.

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

Volume

Hypotenuse

Polygon

Area

Capacity to hold, measured in cubic units.

In a right triangle, the side opposite the 90 degree angle.

A many-sided plane closed figure.

The space within a shape, measured in square units.

Volume

Capacity to hold, measured in cubic units.

Hypotenuse

In a right triangle, the side opposite the 90 degree angle.

Ray

Angle bisector

Sides

Congruent

has a defined starting point & extends infinitely in one direc…

cuts an angle into 2 equal parts.

the edges of angles & polygons.

has exactly the same measurement, equal to each other.

Ray

has a defined starting point & extends infinitely in one direc…

Angle bisector

cuts an angle into 2 equal parts.

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

Alternate Interior Angles

Consecutive Interior Angles

Alternate Exterior Angles

Corresponding Angles

Located on the interior of the lines, on opposite sides of the…

Located on the interior of the lines, on the same side of the…

Located on the exterior of the lines, on opposite sides of the…

Located on the interior and exterior of the lines, on the same…

Alternate Interior Angles

Located on the interior of the lines, on opposite sides of the…

Consecutive Interior Angles

Located on the interior of the lines, on the same side of the…

Concave Polygon

Consecutive Sides

Consecutive Vertices

Convex Polygon

A polygon with a diagonal that does not lie in the interior of…

The two sides of a polygon that share a vertex.

The two endpoints of any one side of a polygon.

A polygon whose diagonals all lie in the interior the polygon.

Concave Polygon

A polygon with a diagonal that does not lie in the interior of…

Consecutive Sides

The two sides of a polygon that share a vertex.

Included Angle

Included Side

Legs of a Right Triangle

Hypotenuse

An angle formed by two given sides of a triangle.

A side of a triangle that falls between two given angles.

The sides that form the right angle.

The side opposite the right angle.

Included Angle

An angle formed by two given sides of a triangle.

Included Side

A side of a triangle that falls between two given angles.

acute angle

right angle

obtuse angle

complementary angles

the angle is less than 90 degrees

a 90 degree angle

an angle greater than 90 degrees

two angles that when added together add up to 90 degrees.

acute angle

the angle is less than 90 degrees

right angle

a 90 degree angle

parallel lines

perpendicular lines

intersecting lines

vertex

a pair of lines that are the same distance apart and will neve…

a "special" pair of intersecting lines that cross at a 90 degr…

a pair of lines that cross or will eventually cross

point where two rays meet to create an angle

parallel lines

a pair of lines that are the same distance apart and will neve…

perpendicular lines

a "special" pair of intersecting lines that cross at a 90 degr…

Midsegment

Midpoint

Perpendicular Bisector

Equidistant

Connects the midpoints of two sides in a triangle. It is paral…

A point that divides a segment into two congruent places (in h…

A line that is perpendicular to a segment at its midpoint (cut…

The same distance

Midsegment

Connects the midpoints of two sides in a triangle. It is paral…

Midpoint

A point that divides a segment into two congruent places (in h…

Obtuse

Acute

Right Angle

Point

An angle that measures more than 90 degrees.

An angle that measures less than 90 degrees.

An angle that measures 90 degrees.

A place in space that is often marked by a letter or number.

Obtuse

An angle that measures more than 90 degrees.

Acute

An angle that measures less than 90 degrees.

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

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…

legs

slope angle

law of sines

inverse tangent

the two sides of a right triangle that form the right angle. t…

the acute angle a line forms with the x-axis on a coordinate g…

used to find measurements in non-right triangles using the sin…

the "undo" of the tangent function

legs

the two sides of a right triangle that form the right angle. t…

slope angle

the acute angle a line forms with the x-axis on a coordinate g…

legs

slope angle

law of sines

inverse tangent

the two sides of a right triangle that form the right angle. t…

the acute angle a line forms with the x-axis on a coordinate g…

used to find measurements in non-right triangles using the sin…

the "undo" of the tangent function

legs

the two sides of a right triangle that form the right angle. t…

slope angle

the acute angle a line forms with the x-axis on a coordinate g…

Alternate Angles on Parallel Lines are…

Corresponding Angles on Parallel Lines…

Co-interior Angles on Parallel Lines ar…

Angle Sum of a Triangle

Alternate Angles on Parallel Lines are…

Corresponding Angles on Parallel Lines…

Equilateral Triangle

Isosceles Triangle

Angle Bisector

Altitude

Triangle in which all three sides are equal

2 sides of a triangle are equal

A line or ray that divides a angle into two congruent angles

Line segment through a vertex and perpendicular to a line cont…

Equilateral Triangle

Triangle in which all three sides are equal

Isosceles Triangle

2 sides of a triangle are equal

bases

bisect

circle

concentric circles

the congruent parallel polygons that form the "top" and "botto…

to divide into two congruent parts

the set of all points on a flat surface that are the same dist…

circles that have the same center

bases

the congruent parallel polygons that form the "top" and "botto…

bisect

to divide into two congruent parts

Complementary Angles

Supplementary Angles

Congruent angles

Vertical Angles

Two angles with measures that have a sum of 90

Two angles with measures that have a sum of 180

Congruent Angles have the same angle

two non-adjacent (next to ) angles formed two intersecting lin…

Complementary Angles

Two angles with measures that have a sum of 90

Supplementary Angles

Two angles with measures that have a sum of 180

Regular Polygon

Parallelogram

Rectangle

Rhombus

a polygon with all sides and all angles equal

a quadrilateral with both pairs of opposite sides parallel

A parallelogram with four right angles

A parallelogram with four equal sides

Regular Polygon

a polygon with all sides and all angles equal

Parallelogram

a quadrilateral with both pairs of opposite sides parallel

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…