Math words

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Across
  1. 4. the distance around something
  2. 7. a group of (typically three or more) notes sounded together, as a basis of harmony.
  3. 8. the ratio of a circle's circumference to its diameter
  4. 9. straight line joining two points on a function.
  5. 10. the angle formed in the interior of a circle when two secant lines intersect on the circle
  6. 12. A central angle is an angle with endpoints and located on a circle's circumference and vertex located at the circle's center
  7. 14. a straight line from the center to the circumference of a circle or sphere.
Down
  1. 1. Concentric circles are circles with a common center
  2. 2. straight line that "just touches" the curve at that point.
  3. 3. a half of a circle or of its circumference.
  4. 5. a part of the circumference of a circle or other curve.
  5. 6. a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
  6. 11. place in the middle
  7. 13. a ring-shaped object, structure, or region.