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Conversion Tables
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Geometric Formulas
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| CIRCLE |
| Area |
= Square of Diameter |
x 0.7854 |
| or Square of Radius |
x 3.1416 |
| Circumference |
= Diameter |
x 3.1416 |
| Diameter |
= Circumference |
x 0.3183 |
Doubling diameter increases area four times;
tripling diameter increases area nine times, etc.
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| SQUARE |
| Area |
Square of Side |
| Diagonal |
Side |
x 1.4142 |
| Side |
Diagonal |
x 0.7071 |
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| SQUARE INSCRIBED IN CIRCLE |
| Side of Square |
= Diameter of Circle |
x 0.7072 |
| or Circumference of Circle |
x 0.2251 |
| Diameter of Circle |
= Side of Square |
x 1.4142 |
| Circumference of Circle |
= Side of Square |
x 4.4429 |
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| RECTANGLE |
| Area |
= Length x Width |
| Diagonal |
= Square root of sum of squares
of Width and Length |
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| HEXAGON (EQUAL SIDES AND ANGLES) |
| Area |
Square of Distance Across Flats |
x 0.866 |
| or Square of Side |
x 2.598 |
| Side |
1/2 of Diagonal |
| or Distance across Flats |
x 0.577 |
| Diagonal |
Distance across Flats |
x 1.155 |
| or Side |
x 2.00 |
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| SQUARE AND CIRCLE WITH EQUAL AREA |
| Side of Square |
Diameter of Circle |
x 0.8862 |
| Diameter of Circle |
Side of Square |
x 1.128 |
| Circumference of Circle |
Side of Square |
x 3.545 |
Conversion Tables Home
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