Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know (0)
Remaining cards (0)
Know (0)
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Geometry 8.1

TermDefinition
Endpoints 2 points on any line
Ray the subset of a line that contains a specific point (the endpoint) and all the points on the line that are on the same side of that point
Intersect wherever 2 lines meet or where 2 lines have a point in common
Perpendicular where 2 intersecting lines form right angles
Concurrent where 3 or more lines intersect at a single point
Parallel where 2 lines lie in the same plane and never intersect
Complementary Angles the sum of the measure of 2 angles equals 90 degrees
Supplementary Angles the sum of the measure of 2 angles equals 180 degrees
Hand-Eye Coordination One aspect of spatial thinking. The ability of the vision system to coordinate the information received through the eyes to control, guide, and direct the hands in the accomplishment of a given task.
Figure-Ground Perception The ability to identify a figure against a complex background.
Perceptual Constancy The ability to recognize figures and objects when they are not in their familiar orientation.
Visual Discrimination The ability to find similarities and differences between or among objects.
Visual Memory Deals with the person's ability to describe or draw accurately, an object that is no longer in view.
Point Geometrically, has no dimension (length or width), but it does have a location.
Right Angle An angle whose measurement is 90 degrees.
Acute Angle An angle whose measure is less than 90 degrees.
Obtuse Angle An angle whose measure is greater than 90 degrees but less than 180 degrees.
Line straight and extends infinitely in two directions
Plane A flat surface that extends infinitely in all directions.
Collinear Points Points that lie on the same line. Any two points are collinear.
Noncollinear Points three (or more) points that do not lie on a single line
Coplanar Points two or more points that lie on a single line
Line Segment A subset of a line that contains two points of the line and all points in between those points.
Straight An angle whose measure is 180 degrees.
Reflex An angle whose measure is greater than 180 degrees but less than 360 degrees.
Skew Two lines that do not intersect because they do not lie in the same plane.
Angle The union of two rays that have a common endpoint
Vertex The common endpoint of two rays.
Side Each of the rays of the angle
Interior The angle formed inside of a shape
Exterior
Vertical angles When two lines intersect, four angles are formed. The angle that are opposite of each other are vertical angles.
Created by: math1420
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards