Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
33 Cards in this Set
 Front
 Back
In a plane, 2 congruent figures can be mapped onto one another by a composition of at most 3 reflections.

Theorem 33


A composition of reflections in 2 intersecting lines is a rotation.

Theorom 32


The only 4 isometries are...

reflection, translation, rotation, and glide reflection.


A composition of reflections in 2 parallel lines is a translation.

Theorem 31


There are only 4 isometries. They are reflection, translation, rotation, and glide reflection.

Theorom 34
Isometry Classification Theorem 

an isometry that does not change orientation is a...

rotation


A translation is an isometry that does not change...

orientation


A change made to the position, shape, or size of a figure is a...

Transformation


A composition of reflections in 2 parallel lines is a...

translations


An isometry is a transformation in which the original figure and its image are...

congruent


An isometry that changes a figure's orientation is a...

reflection


A figure has symmetry if...

there is an isometry that means the figure onto itself.


A transformation that moves points the same distance and in the same direction is a...

translation


Every triangle and quadrilateral ___________.

tessellates


A composition of reflections in 2 intersecting lines is a...

rotation


A dilation maps figures to...

similar figures


A plane figure has reflectional symmetry, or line symmetry if...

there is a line in which the figure is reflected onto itself.


Tessellations can have many kids of symmetries, including...

trnslational symmetry and glide reflectional symmetry.


If a plane figure can be mapped onto itself by a rotation of 180 defrees, it has...

point symmetry


A figure has rotational symmetry if...

there is a rotation of 180 degrees or less that maps the figure onto itself.


A repeating pattern of figures that completely covers a plane without gaps or overlaps is a...

tessellation or a tiling


What maps the tessellation onto itself?

A glide reflection and a translation


You can use scalar multiplication to find the image of a figure under a dilation centered at the orgin in...

the coordinate plane.


The dilation is an enlargement when...

the scale factor is greater than 1.


A similarity transformation is a...

dilation


The dilation is a reduction when...

the scale factor is less than 1.


An entry is...

each item in a matrix


An enlargement is...

the image is larger than the original figure.


Composition is...

any 2 transformations in which the second transformation is performed on the image of the first transformation.


A reflection reverses orientation. A reflection is an isometry.

Properties of a Reflection


A rotation is an isometry. A rotation does not change orientation.

Properties of a Rotation


A translation is an isometry. A translation does not change orientation.

Properties of a Translation


A design that repeats itself along a straight line is a...

frieze pattern
