Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


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. Your email address is only used to allow you to reset your password. See 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
Remaining cards (0)
Know
0:00
edit
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

Unit 8-9 Vocabulary

Geometry and Measurement, Coordinate Plane

TermDefinition
Acute angle Angle that measures less than 90 degrees
Obtuse angle An angle that measures more than 90 degrees but less than 180 degrees
Right angle angle (formed by two perpendicular lines) that measures 90 degrees
Area the measurement that describes the number of square units a figure or region covers
Volume the measurement attribute of the amount of space occupied by matter
Perimeter linear measurement of the distance around the outer edge of a figure
Congruent of equal measure, same size, same shape
Conversion Changing one measurement unit to another measurement unit without changing the amount
Polygon a closed figure with at least 3 sides, where all sides are straight
Regular Polygon A polygon with all sides and all angles congruent
Irregular Polygon A polygon with sides and angles that are NOT all congruent
Two-dimensional figure a figure with two basic units of measure, length and width
Three-dimensional figure a figure that has measurements including length, width (depth), and height
Vertex (vertices) the point or corner where two sides meet
origin (0,0)
ordered pair give a location of a point on a graph (x,y)
x-axis horizontal number line on a coordinate plane
y-axis vertical number line on a coordinate plane
perpendicular two lines that intersect at a right angle
parallel two lines that never instersect
number line a model that lists numbers in order with the same interval
intersect where two lines cross
Quadrilateral a polygon with exactly 4 sides and 4 angles
trapezoid a quadrilateral that must have exactly one pair of parallel sides
parallelogram a quadrilateral that must have exactly 2 pair of parallel sides
isosceles a triangle with 2 congruent sides
scalene a triangle with no congruent sides
equilateral a triangle with all sides congruent
symmetry when two or more parts are identical
Created by: ltamplinpca
Popular Math sets

 

 



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