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obtuse

complementary

supplementary

congruent

triangle

semi-circle

arc

chord

diameter

radius

circle

equilateral

isosceles

line

plane

point

ray

segment

angle

right angle

intersection

acute

skew

parallel

vertex

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PYTHAGOREAN THEREOM

ACUTE ANGLE

ARC

CHORD

CIRCUMFRENCE

DEDUCTIVE REASONING

DIAMETER

EQUILATERAL TRIANGLE

ISOSCELES TRIANGLE

LINE

LINE SEGMENT

OBTUSE ANGLE

PARALLEL LINE

PERPENDICULAR LINE

POINT

POLYGON

PROOF

QUADRILATERAL

RADIUS

RAY

RECTANGLE

RHOMBUS

SCALENE TRIANGLE

SQUARE

VERTEX

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branch of mathematics that deals with points, lines, planes, and solids and examines their properties geometry

has no size, length, width, or height. represented by a dot and named by a capital letter point

set of all points space

points that lie on the same line collinear points

points that lie on the same plane coplaner points

line that consists of two points and all points between them segment

the part of a line that contains an endpoint and all other points extending in the other direction ray

things measuring to the same size or length congruent

a point that divides a segment into two congruent parts midpoint

angle whose measure is between 0 and 90 degrees acute angle

an angle that measures 90 degrees right angle

an angle whose measure is greater than 90 but less than 180 degrees obtuse angle

an angle whose measure is 180 degrees straight angle

triangle with no sides congruent scalene

triangle that has a right angle included right triangle

two angles whose sum is 90 degrees complementary

two angles whose measures sum up to 180 degrees supplementary

line that intersects a circle in two points secant

segment that connects two ponts on a circle chord

comparison of two numbers by divison ratio

congruent polygons lying in parallel planes bases

equation that sates two ratios are equal proportion

parellelogram with consecutive sides congruent rhombus

four sided figure with all sides congruent square

a line segment with two points on a cirlce that passes through the center diameter

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- Crossword Puzzle

a segment whose endpoints are the center and any point on a circle radius

chord that contains the center of a circle diameter

the point from which all points on a circle are equidistant center

an angle whose vertex is the center of a circle central angle

the distance around a circle circumference

an angle whose vertex is on a circle and whose sides contain chords of the circle inscribed angle

a segment whose endpoints are on a circle chord

a line that intersects a circle in two points secant line

an arc with endpoints that are the endpoints of a diameter semicircle

a line in the plane of a circle that intersects the circle at exactly one point tangent line

if the endpoints of a chord or arc lie on the sides of an inscribed angle, the chord or arc is said to subtend the angle subtend

coplanar circles that intersect in one point tangent circles

an arc that lies between two lines, rays or segments intercepted arc

an angle whose sides are tangent to a circle circumscribed angle

a part of the circumference of a circle arc

a circle that contains all the vertices of an inscribed polygon circumscribed circle

coplanar circles that have a common center concentric circles

- Type
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This is the measure of its central angle Arc

A segment whose endpoints are on the circle Chord

If the vertex of the angle is on the circle and the sides of the angle are chords of the circle Inscribed Angle

A line , ray or segment that intersects a circle at two points Secant

An arc smaller than a semi circle Minor Arc

The set of all points in a plane that are a given distance the radius , from a given point , the center Circle

Angle whose vertex is the center of the circle Central Angle

A segment that contains the center of the circle and whose end points are on the circle Diameter

Any segment with one end point on the circle and the other endpoint at the center of the circle Radius

A line , segment or ray in the plane of the circle that intersects the circle in exactly one point. Tangent

An arc that is larger than a semi circle Major Arc

About a polygon if the vertices of the polygon are on the circle. Circumscribed

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- Crossword Puzzle

Line segments that do not intersect. They are side by side and have the same distance continuously between them. Parallel

A straight line going through the center of a circle. It connects two points on the circle's circumference. Diameter

An angle that is equal to 90 degrees. It is usually represented by a small square on the vertex of the angle. right

A flat surface that extends forever and does not end. It contains an x and y axis, and infinite points and lines. plane

A transformation that moves an image a certain distance. It slides an image within a plane without rotating or flipping it. translation

A triangle that has two sides of equal length. The angles opposite the equal sides are also equal. isosceles

A pair of adjacent angles formed by intersecting lines. Another word for supplementary angles, meaning that they add up to equal 180 degrees. linear pair

Two lines that intersect. The relationship between the two lines meet at a right angle. perpendicular

A 2-dimensional shape that has three sides and three angles. There are three types of a ________; Equilateral, Isosceles, and Scalene. triangle

Two angles that add up to equal 90 degrees. Two angles that add up to 180 degrees are supplementary, while two angles that add up to 90 degrees are _________. complementary

The perimeter or distance around the edge of a circle. The equation to find the __________ is πd or 2πr. circumference

A straight path that extends in two opposite directions without end, and has no thickness. A _________ can contain infinite points. line

A part of a line that consists of two endpoints. This forms when two points are connected. segment

A part of a line that consists of one endpoint. When naming a _________, the endpoint MUST com first. ray

A 3-dimensional point, line, or shape. It is a region in which objects exist. space

The distance from the center to the circumference of a circle. It is half of the circle's diameter. radius

A transformation that turns an image around a given point. It can be transformed by turning it clockwise or counterclockwise. rotation

Unit to measure angles. One __________ is the angle measurement of 1/360th of a circle. degrees

The common endpoint of two or more rays or line segments. It is the corner or point where lines meet. vertex

A trigonometric function used in a right angled triangle. It is the length of the adjacent side divided by the length of the hypotenuse. cosine

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- Crossword Puzzle

A portion of a circle defined by two endpoints arc

A segment with endpoints at the center and on the circle radius

A segment with endpoints on the circle chord

An irrational number =C/d pi

Set of points in a plane equidistant from the center circle

A line in the same plane as the circle which intersects the circle in exactly on point tangent

When every side of the polygon is tangent to the circle circumscribedpolygons

A chord that passes through the center diameter

Region bounded by an arc and a chord segmentofcircle

Region bounded by a central angle and its intercepts arc sectorofcircle

An arc greater than 180 degrees majorarc

Arc formed by an inscribed angle interceptedarc

When all vertices of a polygon lie on the circle inscribed

When two circles have congruent radii congruent

A line that intersects a circle in exactly two points secant

Has a vertex on a circle and sides that contains cords of a circle inscribedangle

Point where a tangent line touches a circle pointoftangency

A segment of a secant line that has exactly one endpoint on the circle secantsegment

A secant segment that lies in the exterior of the circle externalsecantsegment

Segment of a tangent with one endpoint on the circle tangentsegment

Arcs in a circle that have exactly one point in common adjacentarcs

Line, ray, or segment this is tangent to two circles in the same plane commontangent

Arcs with the same measurement congruentarcs

An arc equal to 180 degrees semicircle

Two segments created by two chords intersecting in a circle chordsegment

When circles are coplanar and have the same center concentric

An arc less than 180 degress minorarc

An angle with the vertex in the center of the circle centralangle

A circle is ________ about a polygon if it contains all vertices of that polygon circumscribed

Distance between two endpoints along an arc measured in linear units arclength

Distance around a circle circumference

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- Crossword Puzzle

is the distance from the center of a circle to a point on the circle Radius

is a set of all points in a plane that are the same distance from a given point Center

is an arc whose endpoints form the endpoints of a diameter of the circle Semicircle

a circle is an angle whose sides are radii Secant

is an unbroken portion of a circle that lies between two points on a circle Arc

is a segment whose endpoints are points on a circle Chord

is a line that intersects the circle the circle in exactly one point Tangent

an angle whose vertex is on a circle and whose sides contain chords of the circle Central angle

is the point at which a tangent intersects a circle Point of Triangle

, is the arc, with the lesser measure. Minor arc

vertex to midpoints Medians

the intersection of medians Centroid

vertex to side cutting angle in half Angle Bisectors

the intersection of the angle bisectors Incenter

is equidistant from the vertices of the triangle Circumcenter

vertex to opposite side and perpendicular Altitudes

the intersection of altitudes Orthocenter

is a quadrilateral with two distinct sets of congruent sides Kite

is a quadrilateral with one pair of parallel sides called sides. Trapeziod

has congrugent legs, congruent diagnols, and congruent base angles Isosceles Trapezoid

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obtuse angle

Vertex

triangle

transversal line

Theorem

Remote intetior angles

Regular polygon

Pythagorean theorem

Proof

Scalene

Acute angle

Angle

Petpendicular lines

Parallel proof

Paragraph proof

Linear pair

Legs

Interior angles

Inductive reasoning

Hypotenuse

Alternate exterior angles

Alternate interior angles

Corresponding angles

Deductive reasoning

Distance formula

Equiangular

Exterior angle

Complementary angle

Supplementary angle

Congruent

Right angle

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acute

angle

bisect

bisector

congruent

corresponding

degrees

dodecagon

edges

equal

equilateral

example

formula

geometry

hexagon

isosceles

kite

length

obtuse

octagon

parallel

parallelgram

pentagon

perpendicular

polygon

quadrilateral

rectangle

reflection

rhombus

right

rotation

scalene

shape

sides

similar

size

square

sum

translation

trapezoid

triangle

zarah

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Equiangular

Equilateral

Convex

Concave

Polygon

Vertical

Complementary

Supplementary

bisector

Obtuse

Right

Acute

Vertex

Angle

Midpoint

Distance

Coordinate

Postulate

Intersection

Ray

Endpoints

Coplanar

Collinear

Plane

Line

Point