Geometry Vocabulary

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Across
  1. 3. The point that 2 rays share when they form an angle, or a corner point where edges meet.
  2. 5. A polygon with 3 straight sides and 3 angles.
  3. 6. A quadrilateral with at least 2 parallel opposite sides.
  4. 7. A quadrilateral with 2 pairs of parallel sides and 4 right angles.
  5. 8. An angle that measures 180 degrees.
  6. 10. When the parts of a figure can match up exactly after it is folded or turned.
  7. 14. Lines that never intersect.
  8. 18. A three-dimensional shape with two circular bases and a curved surface.
  9. 20. An angle that measures less than 90 degrees.
  10. 27. A polygon with 4 straight sides and 4 angles.
  11. 28. A flat side of a solid shape.
  12. 30. A part of a line with 2 endpoints and all of the points in between them.
  13. 32. The number of unit cubes that fill a solid figure without gaps or overlap.
  14. 33. A polyhedron with 6 square faces that are the same size.
  15. 34. A set of points that are arranged in a straight path and extend infinitely in opposite directions.
  16. 35. A polygon 5 straight sides and 5 corners.
  17. 36. A polygon with 6 straight sides and 6 corners.
Down
  1. 1. Intersecting lines that create 4 right angles.
  2. 2. The number of square units that cover a flat figure without gaps or overlaps.
  3. 4. A unit of rotation used to measure angles. Each degree is 1/360 of a circle.
  4. 9. A quadrilateral with 4 equal sides.
  5. 11. A round three-dimensional shape, like a ball.
  6. 12. A triangle with a 90-degree angle.
  7. 13. A round shape with no corners or straight sides.
  8. 15. A location along a line or in space.
  9. 16. A polyhedron with 6 faces that are all rectangles.
  10. 17. A three-dimensional shape with one circular base and a pointed top.
  11. 19. An angle that measures 90 degrees.
  12. 21. A line segment where two faces of a three-dimensional figure meet.
  13. 22. An angle that measures greater than 90 degrees.
  14. 23. Lines that cross.
  15. 24. A quadrilateral that has 2 pairs of parallel sides.
  16. 25. The boundary of a flat shape. The length of the perimeter is the sum of the side lengths of the shape.
  17. 26. A part of a line that starts at 1 point and goes on infinitely in 1 direction.
  18. 29. A figure made up of 2 rays that share the same starting point.
  19. 31. A quadrilateral with 4 equal sides and 4 right angles.