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NC EOG 8th grade
formulas
Question | Answer |
---|---|
circumference of a circle | 2 x 3.14 x r OR 3.14 x d |
Perimeter of a figure | add all sides |
Area of a triangle | 1/2 base x height |
Area of a square | length x width |
Area of a circle | 3.14 x radius^2 |
Area of a trapezoid | 1/2 height (base 1 + base 2) |
Area of a rectangle | length x width |
Volume | are of the base x height |
Surface Area | add together all areas |
Interest | price x rate x time |