Circle Terms/Formulas
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9 terms
Terms | Definitions |
|---|---|
 arc | a curved line that is part of the circumference of a circle. |
| chord | a line segment within a circle that touches 2 points on a circle. |
| circumference | the distance around the circle. 360° |
| diameter | the longest distance from one end of a circle to the other. |
| origin | the center of a circle. |
| pi | a number, 3.14...equal to (the circumference) / (the diameter) of any circle. |
| radius | distance from center of circle to any point on it. |
| sector | is like a slice of pie (a circle wedge). |
| tangent of circle | a line perpendicular to the radius that touches ONLY one point on the circle. |
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