Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

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 email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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


Chapter 6 Vocabulary

ratio a comparispn of two numbers using division
proportion an equation that states that two ratios are equal
extreme the first and last terms of a proportion
geommetric mean for 2 positive numbers a and b, the positive number x that satifies a/x = x/b. so x(2)= ab and x= sqrt. of ab.
scale drawing a drawing that is the same shape as the object it represents
scale a ratio that describes how the demensions in a scale drawing are related to the actual demensions of the object
similar polygons two polygpns such that their corresponding angles are congruent and the lengths of the corresponding sides are proprotional
scale factor of two similar polygons the ratio of the lengths of two corresponding sides of two similar polygons
dilation a transformation that stretches of a shrinks a figure to create a similar figure
center of dilation in a dilation, the fixed point about which the figure in=s enlarged or reduced
scale factor of a dilation in a dilation the ratio of a side length of the image to the correponding side length of the original figure
reduction a dilation with a scale factor between 0 and 1
enlargement a dilation with a scale factor greater than 1