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 Chapter 3

Angles, Parallel Lines, Perpendicular Lines

QuestionAnswer
Zero Angle An angle that measures zero degrees; a ray.
Straight Angle An angle measuring 180 degrees; a line.
Right angle An angle measuring 90 degrees. A box must be drawn to indicate a right angle, or you must be told a specific angle is a right angle.
Angle bisector A line, line segment, or ray that divides an angle in half.
Complementary angles A pair of angles whose sum equals 90 degrees. Complementary angles do not need to be adjacent angles.
Supplementary angles A pair of angles whose sum equals 180 degrees. Supplementary angles do not need to be adjacent.
Linear Pair A pair of angles that form a line, sharing the same vertex and a side of each angle. These angles MUST be adjacent.
Vertical angles Non-adjacent, congruent angles formed by intersecting lines. There are two pairs of vertical angles when two lines intersect.
Acute angle An angle that measures 0<x<90 degrees.
Obtuse angle An angle that measures 90<x<180.
Midpoint Some point M on segment AB such that AM=MB.
Circle Coplanar points that are equidistant from a center point.
Minor Arc An arc measuring 0<x<180 degrees on a circle.
Major arc An arc measuring 180<x<360 degrees on a circle.
Reflexive property of equality For all real numbers "x"; x=x.
Symmetric property of equality For all real numbers "a" and "b", If a=b, then b=a.
Transitive property of equality For all real numbers "a", "b", and "c", If a=b and b=c, then a=c.
Additive property of equality For all real numbers "a", "b", and "c", If a=b, then a+c=b+c.
Multiplication property of equality For all real numbers "a", "b", and "c", If a=b, then ac=bc.
Additive property of inequality For all real numbers "a", "b", and "c", If a<b, then a+c<b+c.
Multiplication property of inequality For all real numbers "a", "b", and "c", If a<b and c>0, then ac<bc. If a<b and c<0, then ac>bc.
Transitive property of inequality For all real numbers "a", "b", and "c", If a<b and b<c, then a<c.
Equation to the Inequality property For all real numbers "a", "b", and "c", If a+b=c, then c>a and c>b.
Created by: aliciaobermann
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