Busy. Please wait.
or

Forgot Password?

Don't have an account?  Sign up
or

taken

why

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
Know
remaining cards
Save
0:01

 Flashcards Matching Hangman Crossword Type In Quiz Test StudyStack Study Table Bug Match Hungry Bug Unscramble Chopped Targets

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

# 7th math formulas KB

### Math forumlas

TermDefinition
Area of a square A=s^2
Area of a rectangle A=bh
Area of a Triangle A=bh/2
Area of a circle A=pir^2
Circumference of a circle c=pid or c2=pir
perimeter of a rectangle p=2L + 2W
perimeter of a triangle p=s1+s2+s3
perimeter of any shape p=sum of all sides
constant of proportionality is/of = %/100y=kx+k=y/w
percent proportion is/of = %/100
percent of change proportion change/original = %/100
tax,tip,markup,commission is/of = %/100,then (+)
Sales,Discount,Markdown is/of=%/100,Then (-)
% of error =|EV-Av/Av|x100%
Simple interest I=prt
Created by: 18berrik