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Martindalee
Key Formulas
| Question | Answer |
|---|---|
| circumference of a circle | pi*di |
| area of a circle | pi*r^2 |
| percent of | is/of %/100 |
| pi | 3.14 |
| perimeter | add all sides |
| rectangle area | l*w |
| square area | l*w |
| surface area of a cube | 6*S^2 |
| triangle area | b*h/2 |
| volume | l*w*h |
| +/- fractions | common denominator |
| X fractions | multiply straight across |
| / fractions | flip 2nd then divide |