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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

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.

Remove ads
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

Geiss Geo chapter 9

Vocabulary for Perimeter and Area of Geometric Figures

What is a central angle of a regular polygon? An angle with its vertex at the center of a circle.
What is the apothem? The apothem is the distance from the center of the circle to a side.
What is the area formula for a regular polygon? A = 1/2(aP)
What is a composite figure? A composite figure is made up of simple shapes, such as triangles, rectangles,and circles.
What is geometric probability? The probability of an event is based on a ratio of geometric measure such as length or area.
Created by: ronnie200