Math: Circle Definitions

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  1. Distance from the center to a point on the circle
  2. What is the Plural version of Radius
  3. Distance across the circle through its center
  4. A segment whose endpoints are points on the circle
  5. A line in the plane of a circle that intersects the circle in exactly one point
  6. A line that intersects a circle in 2 points
  7. If something is a line what do you write over the letters?
  8. If something is a segment what do you draw over the letters?
  9. Coplanar circles that intersect in one point
    Tangent circles
  10. Consists of the Points that are inside the circle
    Internally tangent
  11. Consists of the points that are outside the circle
    Externally tangent
  12. A line or segment that is tangent to 2 coplanar circles
    Common tangent
  13. Tangent line that hits Inside or between the 2 circles
    Common internal tangent
  14. Tangent line that hit both circles but on the outside
    Common external tangent
  15. They both have the same center
    Concentric circles
  16. Example of a concentric circle?
  17. What is the 1st tangent theorem?
    If a line is tangent to a circle then it is perpendicular to the radius drawn to the point of tangency
  18. What it is the 2nd tangent theorem
    If 2 segments from the same exterior point are tangent to the circle then they are congruent
  19. Angle whose vertex is theĀ centerĀ of a circle, and whose sides pass through a pair of points on the circle
    Central Angle
  20. Shortest arc- less than 180 degrees, only 2 letters
    Minor Arc
  21. Longest arc-3 letters
    Major Arc
  22. If the end pints of an arc are the endpoints of a diameter
  23. The measure of an arc formed by 2 adjacent arcs in the sum of the measures of the 2 arcs
    Arc Addition Postulate
Card Set:
Math: Circle Definitions
2013-05-08 01:26:17
circle definitions math geometry soph marking period four

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