TG parts of a circle

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Author:
MRgwhite
ID:
140232
Filename:
TG parts of a circle
Updated:
2012-03-22 06:03:28
Tags:
circles tg
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Description:
terms for circles
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  1. what is the circumference of a circle
    • the outline of the circle
  2. what is an arc of a circle ?
    any part of the circumference
  3. what is the diameter of a circle
    • a chord that passes through the centre of a circle. It is the size of the circle.
  4. what is a semi circle ?
    • a semi cirlce is half a circle
  5. what is the quadrant of a circle ?
    • a quater of a circle
  6. What is a segment?
    • A segment is a cut part of a circle where the cut line does not go through the centre point.
  7. What is a radius?
    • This is the line joining the centre to a point on the circumference. It is half of the diameter.
  8. What is a sector?
    • A section of a circle enclosed by two radii and an arc
  9. What is a radius?
    A line joining the centre to a point on the circumference. It is often abbreviated to R. The plural of radius is radii.
  10. What is a secant?
    • A line that intersects a circle at two points.
  11. what is Concentric circles?
    • They are circles that have the same centre but different radii. A dart board is a good example.
  12. What is a Eccentric circle?
    • They are circles that have different centres and different radii

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