Geometry Puzzle

12345678910111213141516
Across
  1. 5. a point that divides a line segment into two parts of equal length
  2. 6. formed by two radii of a central angle and the arc between their endpoints on the circle
  3. 7. set of points a fixed distance from a center and is defined by a central angle
  4. 9. both pairs of opposite sides are parallel
  5. 10. an angle in a circle with its vertex on the circle
  6. 13. property the measure of any side or angle is equal to itself
  7. 14. line that is perpendicular to the circle's radius
  8. 15. an angle in a circle with its vertex on the circle
Down
  1. 1. a segment that connects the midpoints of any two sides of a triangle
  2. 2. Any two points on a circle. Usually referred to as the smaller of two
  3. 3. two pairs of adjacent congruent sides
  4. 4. a line segment that has both endpoints on a circle
  5. 5. Any two points on a circle. Usually referred to as the larger of two
  6. 6. four equal sides and four right angles
  7. 8. property if x=y and y=z then x=z
  8. 11. two-dimensional closed figure made up of straight-line segments connected end-to-end
  9. 12. four right angles
  10. 16. four equal sides