Type
Crossword
Description

space between two intersecting lines angle
having angles or sharp corners angular
cause to change direction by interposing something deflect
cause to become twisted together entangle
bend or become bent flex
capable of bending easily flexible
severely mutilate, disfigure, or damage mangle
four-sided plane figure quadrangle
plane figure with four straight sides rectangle
throw back without absorbing it reflect
throwing back by a body or surface of light reflection
providing a reflection reflective
response to a stimulus reflex
twist together tangle
plane figure with three straight sides triangle

Geometry Vocabulary Crossword

Type
Crossword
Description

A closed plane figure formed by three or more straight sides that are line segments. polygon
A polygon with three sides and three angles. triangle
A polygon with four sides and four angles. quadrilateral
A polygon with five sides and five angles. pentagon
A polygon with six sides and six angles. hexagon
A polygon with seven sides and seven angles. heptagon
A polygon with eight sides and eight angles. octagon
A polygon with nine sides and nine angles. nonagon
A polygon with ten sides and ten angles. decagon
An angle that measures greater than 0 degrees and less than 90 degrees. acute
An angle that forms a square corner and has a measure of 90 degrees. right
An angle whose measure is 180 degrees. straight
An angle that measures greater than 90 degrees and less than 180 degrees. obtuse
An exact location in space. point
A straight path of points in a plane that continues without end in both direcetions with NO endpoints. line
A part of a line that includes two points called endpoints and all the points between them. line segment
A part of a line; it has one endpoint and continues without end in one direction. ray
The point at either end of a line segment of the starting point of a ray. endpoint
Lines in the same plane that never intersect and are always the same distance apart. parallel
Two lines that intersect to form four right angles. perpendicular
Lines that cross each other at exactly one point. intersecting
The number of square units needed to cover a surface. area
The distance around a figure. perimeter
A parallelogram with four equal, or congruent, sides and four right angles. square
A parallelogram with opposite sidees that are equal, or congrudent, and with four right angles. rectangle
A parallelogram with four equal, or congruent, sides. rhombus
A quadrilateral with exactly one pair of parallel sides. trapezoid
A quadrilateral whose opposite sides are parallel and equal, or congruent. parallelogram
Having the EXACT same size and shape. congruent

A Crossword Puzzle of the Language of Geometry

Type
Crossword
Description

part of a line that is bounded by two distinct end points segment
2 angles that add up to 180 degrees supplementary
exactly similar parts facing each other or around an axis. symmetry
a figure with four equal straight sides and four right angles square
A line with a start point but no end point ray
having a common vertex and a common side adjacent
a figure with three straight sides and three angles triangle
a nine-sided figure nonagon
a transformation in which the figure is reflected across a line, creating a mirror image reflection
a quadrilateral with only one pair of parallel sides trapezoid
at an angle of 90° to a given line perpendicular
each angular point of a polygon vertex
2 angles that add up to 90 degrees complementary
a transformation in which the figure is turned around a fixed center point rotation
a figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square rectangle
A long thin mark made by a pen line
the continuous line forming the boundary of a closed figure perimeter
a figure with at least three straight sides and angles polygon
a seven-sided figure heptagon
the longest side of a right triangle hypotenuse
a transformation in which every point of the figure is moved in the same direction and for the same distance translation
the space between two intersecting lines or surfaces at or close to the point where they meet angle
a parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides rhombus
a triangle that has three unequal sides scalene
a transformation in which the figure is enlarged or decreased in size dilation

Flex, Flect Root Crossword

Type
Crossword
Description

Capable of bending without breaking Flexible
Not capable of bending without breaking inflexible
An angle that is greater than 180 degrees because the angle is bent beyond the straight line reflex angle
To bend or throw back light or heat; to fold or turn back reflect
A muscle that bends a part of the body, such as an arm or leg flexor
The bending of a person's voice so that it does not sound boring or within only one tone; making one's voice go up and down inflection
The image in a mirror that is a result of bending light when it is thrown back Reflection
To turn or move to one side; to bend or swerve deflect
Bent or turned backward retroflex
To bend around or curve circumflex

Morphology #7 Word Search

Type
Word Search
Description

triangular
triangle
tangle
reflex
reflective
reflection
reflect
quadrangle
mangle
inflexible
flexible
flexibility
flex
entanglement
entangle
disentangle
deflect
angular
angle

spelling flex flect ang Word Search

Type
Word Search
Description

triangle
triangular
tangle
reflex
reflective
reflection
reflect
rectangle
quadrangle
mangle
inflexible
flexible
flexibility
flex
entanglement
entangle
disentangle
deflect
angular
angle

IED Unit 5 key terms Crossword

Type
Crossword
Description

A triangle that contains only angles that are less than 90 degrees. Acute Triangle
The amount of rotation needed to bring one line or plane into coincidence with another, generally measured in radians or degrees. Angle
The number of square units required to cover a surface. Area
1. An imaginary line through a body, about which it rotates. Axis
A 3D point defining the geometric center of a solid. Centroid
A round plane figure whose boundary consists of points equidistant from the center Circle
1. A triangle located round a polygon such as a circle. Circumscribe
A solid composed of two congruent circles in parallel planes, their interiors, and all the line segments parallel to the axis with endpoints on the two circles. Cylinder
The measure of mass density is a measure of mass per volume. Density
A straight line passing from side to side through the center of a circle or sphere. Diameter
A shape generated by a point moving in a plane so that the sum of its distances from two other points (the foci) is constant and equal to the major axis Ellipse
A curve formed at the interior intersection between two or more surfaces. Fillet
To draw a figure within another so that their boundaries touch but do not intersect. Inscribe
The amount of matter in an object or the quantity of the inertia of the object. Mass
A triangle with one angle that is greater than 90 degrees. Obtuse Triangle
A four-sided polygon with both pairs of opposite sides parallel. Parallelogram
The numerical value of the ratio of the circumference of a circle to its diameter Pi
Any plane figure bounded by straight lines. Polygon
A solid geometric figure whose two ends are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms. Prism
A four-sided polygon. Quadrilateral
A straight line from the center to the circumference of a circle or sphere. Radius
A parallelogram with 90 degree angles. A square is also a rectangle. Rectangle
A triangle that has a 90 degree angle. Right Triangle
A regular polygon with four equal sides and four 90 degree angles. Square
The squared dimensions of the exterior surface Surface Area
A straight or curved line that intersects a circle or arc at one point only. Tangent
A polygon with three sides. Triangle
The amount of three-dimensional space occupied by an object or enclosed within a container. Volume
A four-sided polygon. Quadrilateral

Geometry Crossword Puzzle

Type
Crossword
Description

Polygons having the same shape. Two polygons whose corresponding angles are congruent and the lengths of the corresponding sides are proportional. SIMILAR POLYGONS
Space occupied by a solid; measured in cubic inches. VOLUME
3-D figure with faces(sides) that are polygons. A solid figure with many plane faces, typically more than six. POLYHEDRON
Parts of congruent figures that match or are in the same places as each other. The parts (angles or sides) are in the same relative position in each of the figures. CORRESPONDING PARTS
Using properties of similar polygons to find lengths that are difficult to measure directly. A method of using proportions to find an unknown length or distance in similar figure. INDIRECT MEASUREMENT
Applying more than one transformation to an image. A transformation is put on the previous image several times. COMPOSITION OF TRANSFORMATIONS
Shapes that have the same shape but different sizes,~. Having corresponding sides proportional and corresponding angles equal. SIMILAR
A 3-D figure with all points the same distance from the center. A round solid figure, or its surface, with every point on its surface equidistant from its center. SPHERE
3-D figure with two parallel congruent circles. Connected by a curved circle. A solid geometric figure with straight parallel sides and a circular or oval cross section. CYLINDER
3-D figure with one circle base connected by a curved surface to a single vertex. A solid or hollow object that tapers from a circular or roughly circular base to a point. CONE
Objects made up of more than one solid. A solid that is composed, or made up of, two or more solids. COMPOSITE SOLIDS
Longest side of a right triangle; always across or opposite from right angle. HYPOTENUSE
Reversing the Pathagorean Theorem; Switching the hypotenuse and conclusion of a conditional statement. CONVERSE
Has three angles and three sides; has a sum of 180 degrees. TRIANGLE
Simply closed figure with three or more sides. POLYGON
Angles of a triangle that are not adjacent to a given exterior angle. REMOTE INTERIOR ANGLES
Operation that maps an original geometric figure to a now figure. A general term for four specific ways to change the shape on a graph. TRANSFORMATION
Fixed point or point that doesn't change in a rotation. POINT OF ROTATION
Intersecting line making a right angle. Two lines that meet a pet a right angle. PERPENDICULAR LINES
Outside the parallel's but opposite of the transversal; congruent. ALTERNATE EXTERIOR ANGLES

geometry Crossword

Type
Crossword
Description

a plane figure with ten straight sides and angles. decagon
a part of a figure cut off by a line or plane intersecting it, in particular. segment
both parts have the same truth value biconditional
statements that are assumed to be true without proof proof
line that cuts across two or more (usually parallel) lines. ... It cuts across the parallel lines PQ and RS. If it crosses the parallel lines at right angles transversal
add up to 180 supplementary
When three or more points lie on a straight line. collinear
one shape becomes exactly like another if you flip, slide or turn it. symmetry
A 4-sided flat shape with straight sides where: • all sides have equal length, and • every interior angle is a right angle (90°) square
A ray is part of a line, has one fixed endpoint, and extends infinitely along the line from the endpoint. ray
an if-then statement in which p is a hypothesis and q is a conclusion. conditional
t angles are two angles that have a common vertex and a common side adjacent
A 3-sided polygon triangle
line that extends from one vertex of a triangle perpendicular to the opposite side. altitude
A 9-sided polygon nonagon
Switching the hypothesis and conclusion of a conditional statement. converse
A point where two or more straight lines meet vertex
add up to 90 complementary
A set of points, lines, line segments, rays or any other geometrical shapes that lie on the same plane coplanar
A circular movement rotation
A 4-sided flat shape with straight sides where all interior angles are right angles (90°). rectangle
s straight (no curves), • has no thickness, and • extends in both directions without end infinitely line
circumference. perimeter
"then" part of a conditional statement. conclusion
any 2-dimensional shape formed with straight lines. polygon
7-sided polygon or 7-gon. heptagon
longest side hypotenuse
prove the boundaries of possible theorems. counterexample
Sliding translation
The length of the opposite side divided by the length of the adjacent side. tangent
A shape, formed by two lines or rays diverging from a common point angle
four sides all have the same length. rhombus
statement formed by interchanging theorem
A triangle with all sides of different lengths. scalene

Geometry Terms Crossword

Type
Crossword
Description

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

Unit 6: Transformations & Symmetry Crossword

Type
Crossword
Description

a figure resulting from a transformation. image
a transformation in the plane that preserves distance and angle measure. rigid motion
the original image before transformation. pre-image
a symbol used to distinguish one quantity x' ("x prime") from another x. Prime marks are most commonly used to denote transformed coordinates. prime
the act of changing the position of a shape on a coordinate plane. transformations
a transformation that "slides" each point of a figure the same distance in the same direction. translation
a transformation that "flips" a figure over a mirror or reflection line. reflection
a transformation where you "turn" a figure about a given point. rotation
one shape becomes exactly like another when you move it in some way: turn, flip or slide. symmetry
having exactly the same size and shape. congruent
a line that a figure is flipped across to create a mirror image of the original figure. line of reflection
a fixed point around which shapes move in a circular motion to a new position. center of rotation
a point where two or more straight lines meet. vertex
lines in the same plane that do not intersect. parallel lines
two lines that intersect to form a right angle. perpendicular lines
plane figure having four sides and four angles. quadrilateral
a plane figure with at least three straight sides and angles, and typically five or more. polygon
when all angles are equal and all sides are equal (otherwise it is "irregular"). regular polygon
a transformation that stretches or shrinks a figure to create a similar figure. dialation
the way an object is 'pointing' or angled. orientation