Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
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.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

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

Vocabulary Chapter 8

Math Vocabulary Chapter 8 Flashcards

Vertex The point where the two rays meet
Right Angle Exactly 90 degrees
Acute Angle Less than 90 degrees
Obtuse Angle Greater than 90 degrees
Straight Exactly 180 degrees
Vertical Angle Opposite angles formed by the intersection of two lines
Congruent Have the same measure
Adjacent Angle They share a common vertex, a common side, and do not overlap
Prism Three dimensional figure with at least two parallel faces
Bases Congruent faces that are polygons
Pyramid A three dimensional figure with one base that is a polygon
Plane A flat surface that goes on forever in all direction
Coplanar They lie in the same plane
Parallel They will never intersect
Polyhedron A three dimensional figure with flat surface that are polygons
Edge Two planes intersect in a line
Face A flat surface
Vertex Where three or more planes intersect at a point
Diagonal A line segment whose endpoints are vertices that are neither adjacent nor on the same face
Cylinder A three dimensional figure with two parallel congruent circular bases connected by a curved surface
Cone On circular base connected by a curved side to a single vertex
Cross Section The intersection of a solid and plane of the solid
Supplementary Angles If the sum of their measures is 180 degrees
Complementary Angles If the sum of their measures is 90 degrees
Acute Triangle All acute side
Right triangle 1 right triangle
Obtuse Triangle 1 obtuse angle
Scalene Triangle No congruent sides
Isosceles Triangle At least 2 congruent sides
Equilateral Triangle 3 congruent sides
Triangle A figure with three sides and three angles
Congruent Segments Sides with the same length
Scale model Model used to represent objects that are too large or too small to be built at actual size
Created by: vanne0112