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

Geometry Topic A

Vocabulary

TermDefinition
Equilateral Triangle A triangle with all sides equal, and all angles equal (they are 60 degrees),
Compass A geometric tool that has two arms, one sharp and the another with a pencil that can be used to draw circles or arcs.
Segment The distance between two points (part of a line).
Arc Part of any curve or part of the circumference of a circle.
Congruent In geometry, two figures are congruent if they have the same size and shape.
Perpendicular Lines Lines that intersect and form right angles.
Straightedge A geometric tool used to draw straight lines.
Radius A segment from the center of a circle to a point on the circle.
Circle A A shape consisting of all points in a plane that are a given distance from a given point.
Geometric Construction A set of instructions for drawing points, lines, circles, and figures in a plane.
Figure A set of points in a plane.
Collinear Three or more points contained in a line
Noncollinear Three or more points not contained in a line
Ray Part of a line that has an endpoint (start point) but no end point.
vertex A point where two or more segments or rays meet.
Angle The union of two noncollinear rays with the same endpoint.
Angle Bisector A line or segment that divides an angle into two equal parts.
Midpoint A point that is exactly between two endpoints on a segment.
Degree A unit of measurement of angles.
Straight Angle Is a line that measures 180 degrees.
Perpendicular Bisector A line segment that is perpendicular to and passes through the midpoint of another line or segment.
Point of Concurrency A point where three or more lines intersect in one place.
Circumcenter of a Triangle A point where the "perpendicular bisectors" (lines that are at right angles to the midpoint of each side) meet.
Incenter of a Triangle It is where the "angle bisectors" (lines that split each corner's angle in half) meet.
Orthocenter of a Triangle The point where the three "altitudes" of a triangle meet. An "altitude" is a line that goes through a vertex (corner point) and is at right angles to the opposite side.
Created by: mberish
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