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7th math formulas 5
formulas for 7th grade math
Term | Definition |
---|---|
area of sqaure | A=s^2 |
area of rectangle | A=bh |
area of a triangle | A=bh/2 |
area of a circle | A=IIr ^2 |
circumference of a circle | C= IId or C=2IIr |
perimeter of a rectangle | P=2 L + 2w |
perimeter of a triangle | P= sl+s2 + S3 |
perimeter of any shape | P= sum of all sides |
constant of proportionality | Y=kx and K= Y/x |
percent proportion | is/of = %/100 |
percent of change proportion | change/original =%/100 |
tax,tip,markup,commission | is/of =%/100, than (+) |
sales,discount,markdown | is/of= %/100 then (-) |
% of error | EV-AV/AV x 100% |
simple interest | I=prt |