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

Geometry Basics III

Circles and Solid Figures (Curved and Polyhedrons)

Circumference The distance around a circle
Radius A line segment from the center of a circle to any point on the outside of the circle. It is equal to half the diameter
Diameter A line segment across a circle that passes through the center of the circle
Chord A line segment with both endpoints on the outside of the circle, but which does not pass through the center of the circle.
Arc A section of the circumference of a circle
Polyhedron A solid figure in which all sides are polygons
Pyramid A polyhedron that has one base and triangular faces
Prism A polyhedron that has two congruent bases
Edge The line segment where two faces of a polyhedron meet
Vertex The point where three edges meet
Curved solid Any solid figure with no edges
Sphere A curved solid with no bases or faces
Cone A figure with a flat circular base and one curved surface leading to a vertex
Cylinder A figure with one curved surface and two parallel bases that are congruent circles
Hemisphere Half a sphere with a circular base
Faces Connected polygons that makes up a section of a polyhedron
Sphere A curved solid that has no base
Created by: Rvanmeter