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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

Complementary angles

Points that lie on the same line

A pair of adjacent angles whose noncommon sides are opposite…

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…

Collinear

Linear Pair

Supplementary angles

Complementary angles

Points that lie on the same line

A pair of adjacent angles whose noncommon sides are opposite…

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…

circumcenter

perpendicular bisector

bisect

centroid

where all the perpendicular bisectors of a triangle intersect

Bisects a segment and is perpendicular to it.

to cut exactly in half

The point of concurrency of the medians of a triangle

circumcenter

where all the perpendicular bisectors of a triangle intersect

perpendicular bisector

Bisects a segment and is perpendicular to it.

Tangent

Secant

Intersection of a tangent and a radius

Equation of a circle

intersects a circle in only 1 place.

intersects a circle in 2 places.

form right angles when they intersect.

x minus h squared plus y minus k squared equals radius squared.

Tangent

intersects a circle in only 1 place.

Secant

intersects a circle in 2 places.

Geometry

Euclidean Geometry

Undefined terms

Point

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

identifies a geometry which Euclid formalized and which was a…

terms in Euclidean geometry which mathematicians consider onl…

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

Geometry

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

Euclidean Geometry

identifies a geometry which Euclid formalized and which was a…

Point

Line

Segment

Plane

mathematical object with no size, which can be specified in -…

A straight path that extends without end in opposite directio…

A part of a line between two endpoints.

A flat surface on which a straight line joining any two point…

Point

mathematical object with no size, which can be specified in -…

Line

A straight path that extends without end in opposite directio…

Area

Perimeter

Area vs perimeter

Trapezoid

Area is the number of square units enclosed by the two dimens…

Perimeter is the distance around the outside of a 2D shape.

Area is the number of square units enclosed by the 2D shape.…

Two dimensional shape with four sides and one pair of paralle…

Area

Area is the number of square units enclosed by the two dimens…

Perimeter

Perimeter is the distance around the outside of a 2D shape.

Quadrilateral

Trapezoid

Parallelogram

Rectangle

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

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

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

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

Quadrilateral

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

Trapezoid

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

parallelogram

rhombus

rectangle

square

A quadrilateral with two pairs of parallel sides

A quadrilateral with four congruent sides. "Kite"

A parallelogram with 90 degree angles. A square is also a rec…

4 equal sides. 90 degree angles.

parallelogram

A quadrilateral with two pairs of parallel sides

rhombus

A quadrilateral with four congruent sides. "Kite"

Geometry

Euclidean Geometry

Undefined terms

Point

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

identifies a geometry which Euclid formalized and which was a…

terms in Euclidean geometry which mathematicians consider onl…

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

Geometry

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

Euclidean Geometry

identifies a geometry which Euclid formalized and which was a…

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

height

length

width

area

(noun) the vertical distance from top to bottom.

(noun) the distance along a line or curve.

(noun) the distance from one side of an object to another.

(noun) the amount of surface inside a 2-dimensional shape. Th…

height

(noun) the vertical distance from top to bottom.

length

(noun) the distance along a line or curve.

point

line

line segment

ray

a location in space

straight pat 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 fore…

point

a location in space

line

straight pat of points that continues infinitely in both dire…

Severus, Snape

Sirius, Black

pyramid

cone

Potions and dark arts teacher at Hogwarts also head of Slythe…

Harry Potters God Father

a polyhedron formed by connecting a point called the apex

a solid 3d shape that tapers from a circle or ruffly circular…

Severus, Snape

Potions and dark arts teacher at Hogwarts also head of Slythe…

Sirius, Black

Harry Potters God Father

Point

line

Ray

Obtuse Angle

an exact location that has no size

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

A part of a line, with one endpoint, that continues without e…

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

Point

an exact location that has no size

line

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

height

length

width

area

(noun) the vertical distance from top to bottom.

(noun) the distance along a line or curve.

(noun) the distance from one side of an object to another.

(noun) the amount of surface inside a 2-dimensional shape. Th…

height

(noun) the vertical distance from top to bottom.

length

(noun) the distance along a line or curve.

Perpendicular lines

Parallel lines

Vertical angles

Adjacent angles

Lines that intersect to form right angles

Coplanar lines that do not intersect

Angles that are formed opposite of each other when 2 lines in…

Angles that share a vertex and a side

Perpendicular lines

Lines that intersect to form right angles

Parallel lines

Coplanar lines that do not intersect

No size no width no height

two

Three

A point

Identify a point

A line is made of at least ...... colinear points

A plane is made of at least ........ non colinear points

Intersection of two lines creates ......

No size no width no height

Identify a point

two

A line is made of at least ...... colinear points

Square

Rectangle

Triangle

Circle

A _____ is a plane figure with 4 equal sides and 4 right angl…

A Quadrilateral with 4 sides and 4 right angles.... Opposite si…

A polygon with 3 sides and 3 angles.

A polygon made with a continuous line which is always the sam…

Square

A _____ is a plane figure with 4 equal sides and 4 right angl…

Rectangle

A Quadrilateral with 4 sides and 4 right angles.... Opposite si…

Acute Angle

Obtuse Angle

Right Angle

Straight Angle

angle that measures less than 90 degrees

angle that measures more than 90 degrees

angle that measure 90 degrees

angle that measures 180 degrees

Acute Angle

angle that measures less than 90 degrees

Obtuse Angle

angle that measures more than 90 degrees

Geometry

Point

Line

Plane

The study of shapes and their spatial properties.

An exact location in space. (Point A)

Infinitely many points that extend in both directions forever.

A surface with length and width but no thickness, extending i…

Geometry

The study of shapes and their spatial properties.

Point

An exact location in space. (Point 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…

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…

Collinear

Linear Pair

Supplementary angles

Complementary angles

Points that lie on the same line

A pair of adjacent angles whose noncommon sides are opposite…

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…

interior angle of a triangle

parallel lines

perpendicular lines

supplementary angles

180 degrees

ll lines in the same plane that never cross or intersect

two lines that intersect to form right angels

angles whose sum equals 180 degrees

interior angle of a triangle

180 degrees

parallel lines

ll lines in the same plane that never cross or intersect

Parallelograms

Quadrilateral

Rectangle

Rhombus

A quadrilateral (4 sides & 4 angles) where opposites sides ar…

A polygon with 4 sides and 4 angles.

A quadrilateral with 4 sides and 4 right angles.... Opposite si…

A parallelogram with four equal sides and opposite angles are…

Parallelograms

A quadrilateral (4 sides & 4 angles) where opposites sides ar…

Quadrilateral

A polygon with 4 sides and 4 angles.

Tangent

Secant

Intersection of a tangent and a radius

Equation of a circle

intersects a circle in only 1 place.

intersects a circle in 2 places.

form right angles when they intersect.

x minus h squared plus y minus k squared equals radius squared.

Tangent

intersects a circle in only 1 place.

Secant

intersects a circle in 2 places.

bisector

segment

Radius

circle

A ray that divides an angle into two congruent angles

The line between A and B

A straight line from the center to the circumference of a cir…

Set of points that are a fixed distance from a given point ca…

bisector

A ray that divides an angle into two congruent angles

segment

The line between A and B

Area

Perimeter

Trapezoid

Composite figure

the number of square units enclosed by the two dimensional sh…

the distance around the outside of a 2D shape.

Two dimensional shape with four sides and one pair of paralle…

A figure (or shape) that can be divided into more than one of…

Area

the number of square units enclosed by the two dimensional sh…

Perimeter

the distance around the outside of a 2D shape.

point

line

line segment

ray

a location in space

straight pat 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 fore…

point

a location in space

line

straight pat of points that continues infinitely in both dire…

quadrilateral

point

line

ray

a shape with four sides and four angles

an exact location represented by a dot

a straight set of points that extends in opposite directions…

a part of a line that has one endpoint and extends in one dir…

quadrilateral

a shape with four sides and four angles

point

an exact location represented by a dot

Midsegment

Median

Altitude

Perpendicular Bisector

def: two midpoints connected by a line... Prop: midsegment is pa…

Def: segment that connects a vertex of a triangle to the midp…

Def: a line segment that goes through the vertex and is perpe…

Def: a line segment that goes through the midpoint of a side…

Midsegment

def: two midpoints connected by a line... Prop: midsegment is pa…

Median

Def: segment that connects a vertex of a triangle to the midp…