Geometry Vocabulary

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Across
  1. 2. The set of all points in a plane that are a given distance from a point, known as the center
  2. 3. The sum of two sides of a triangle must be ? than the third side
  3. 4. A triangle with no two sides congruent
  4. 6. Two angles which are complementary must each be ?
  5. 10. Lines that do not cross and lie in the same plane
  6. 12. The smallest measurement for the third side of a triangle if two sides measure four and five
  7. 13. A flat surface with no thickness
  8. 14. The sum of the angles in this polygon is 180 degrees
  9. 15. A group of polygons that include squares, rectangles, and trapezoids
  10. 18. The classification of a triangle with two angles measuring 60 degrees
  11. 19. To find this measurement of a circle you find the product of Pi and the square of the radius
  12. 20. Angles whose measures are equal are called ? angles
  13. 22. A polygon with five sides
  14. 23. The distance around a circle
  15. 27. The ratio of the circumference to the diameter
  16. 28. A segment whose midpoint is the center of a circle
  17. 30. Triangles that are the same shape, but not the same size
  18. 32. An angle with measure greater than 90 degrees
  19. 33. If the sides of a rectangle are multiplied by three, then the area would be multiplied by ?
Down
  1. 1. When two lines intersect, two pairs of these angles are formed
  2. 5. In a triangle, the three vertices can never be ?
  3. 7. A triangle with two congruent angles
  4. 8. A pair of angles whose sum is 90 degrees
  5. 9. An octagon has eight of them
  6. 10. The instrument used to measure angles
  7. 11. The distance from the center of a circle to a point on the circle
  8. 16. Two angles that have a common side and a common vertex but do not overlap are called ? angles
  9. 17. If all the sides and all the angles of a polygon are congruent, the polygon is called ?
  10. 21. A quadrilateral has four of them
  11. 24. The middle of a line segment
  12. 25. A geometric object that extends infinitely in only one direction
  13. 26. The relationship between angle measures in similar triangles
  14. 29. Two angles which are both congruent and supplementary must each be ? angles
  15. 31. A comparison of two quantities