Geometry Crossword Activity

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Across
  1. 2. a flat surface that extends endlessly in all directions.
  2. 4. an exact location in space.
  3. 6. of the root of a number or quantity
  4. 7. an angle whose measure is 180°
  5. 8. angle formed in the interior of a circle when two chords intersect
  6. 12. portion of a curve
  7. 13. length, distance between two points on a circle
  8. 14. have the same shape and size
  9. 15. consists of two rays that have a common endpoint called the vertex of the angle.
  10. 17. a part of a line having two endpoints.
  11. 19. two angles with equal measure formed by two intersecting lines.
Down
  1. 1. an angle whose measure is 90°.
  2. 3. a collection of points along a straight path that extends endlessly in both directions.
  3. 4. two ratios that are set equal to each other.
  4. 5. two lines that intersect to form right angles
  5. 9. two lines in the same plane that do not intersect
  6. 10. a straight line or plane that touches a curve or curved surface at a point
  7. 11. a line from the center of a regular polygon at right angles to any of its sides.
  8. 16. line segment joining two points on a curve
  9. 18. a part of a line having only one endpoint.