Circle__Math Is Fun.HaHa.

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Across
  1. 4. a region of a circle which is "cut off" from the rest of the circle by a secant or a chord
  2. 7. your expected grade on this quiz
  3. 8. the study of numbers, shapes, and space using reason and usually a special system of symbols and rules for organizing them
  4. 9. a set of principles on which the practice of an activity is based
  5. 10. the linear distance around a shape's edge
  6. 11. divide (a line, angle, shape, etc.) into two equal parts
  7. 13. a set of principles on which the practice of an activity is based
  8. 15. a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides
  9. 16. angle the angle inside two adjacent sides of a polygon
  10. 17. a line from the center of a regular polygon at right angles to any of its sides
  11. 18. a plane figure that is described by a finite number of straight line segments connected to form a closed polygonal chain or polygonal circuit.
Down
  1. 1. the center of mass of two or more bodies that orbit one another and is the point about which the bodies orbit
  2. 2. a circle which passes through all the vertices of the polygon
  3. 3. a regular, convex polyhedron
  4. 5. a straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point
  5. 6. the set of points which are an equal distance to a fixed point
  6. 12. ice-cream____
  7. 14. shorten (something) by cutting off the top or the end