Math014 Crossword Puzzle

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Across
  1. 1. is a closed plane figure formed by line segments
  2. 3. is a conic section in which the eccentricity is equal to 1
  3. 7. is a general term for a four-sided polygon
  4. 10. is a parallelogram in which the interior angles are all right angles
  5. 11. is a line segment joining two non-adjacent vertices of the polygons
  6. 12. a triangle with no right angle
  7. 14. is a quadrilateral with no parallel sides
  8. 16. is the altitude of the isosceles triangles that can be formed from a regular polygon
  9. 17. is one of the line segments that make up the polygon
  10. 19. is the figure bounded by two radii and an included arc
Down
  1. 1. is an expression of equality between two ratios
  2. 2. is a portion of a circle that contains two endpoints on the circle and all the points on the circle between theses endpoints
  3. 4. is the perimeter of the circle
  4. 5. is a quadrilateral in which the opposite sides are parallel
  5. 6. is known as the line joining the center of a circle to any points on the circle
  6. 8. is a rectangle in which all the sides are equal
  7. 9. are the endpoints of each side of the polygon
  8. 13. is a quadrilateral with one pair of parallel sides
  9. 15. a triangle with two congruent sides and two congruent angles
  10. 18. is a line segment joining any two points on the circle