Geometry Vocabulary

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Across
  1. 1. all three sides of the triangle are equal to each other
  2. 7. The degree of an angle when dividing the opposite side and hypotenuse of a right triangle
  3. 11. a line that has one endpoint
  4. 13. shares the same angle as the hypotenuse side
  5. 15. A shape that has three sides and three angles
  6. 18. angle a supplementary angle to one of the interior angles of the lines or polygon
  7. 20. half of a circle that equals 180 degrees exactly
  8. 23. Theorem The square of the two side lengths is equal to the square of the hypotenuse of the triangle
  9. 25. A shape with four equal sides and four right angles
  10. 26. Any enclosed shape that has at least three sides and three angles
  11. 29. A quadrilateral that has one pair of parallel sides
  12. 31. Lines Straight lines that go on infinitely and never intersect each other
  13. 32. The perimeter of a circle
  14. 36. The length of the outline of any 2D shape
  15. 39. The degree of an angle when dividing the adjacent side and hypotenuse of a right triangle
  16. 41. A line that is the distance between any two points in a circle that also passes through the center
  17. 42. A line that is the distance between the center and any point on the circumference of a circle
  18. 43. angle Two angles that when added together equal 90°
  19. 46. a line that separates an angle into two equal halves
  20. 47. A point that is directly in the middle of a line segment
  21. 48. angles are all equal to each other in the triangle
  22. 50. a line that crosses through a circle in two different spots
Down
  1. 2. A straight, one-dimensional figure that extends in two directions
  2. 3. a segment that has two endpoints anywhere inside the circle
  3. 4. A shape that has four sides,corners,and angles
  4. 5. segment A line that has endpoints on each end
  5. 6. two lengths of a three sided polygon that are the same in measure
  6. 8. angle of a Triangle this rule states that all three angles inside of a triangle must add up to equal 180 degrees
  7. 9. angle An angle that is less than 90°
  8. 10. A shape that has four sides, with the opposite sides being parallel and congruent, and has no right angles
  9. 12. The total space taken up by any 2D shape
  10. 14. The degree of an angle when dividing the opposite side and the adjacent side of a right triangle
  11. 16. the perimeter of a circle
  12. 17. A portion of the circumference of a circle
  13. 19. Two lines that intersect to create a 90° angle
  14. 21. all three sides of a triangle are not equal in length
  15. 22. a straight line placed on a graph
  16. 24. Shapes or points lying in the same plane
  17. 27. The total space taken up by a 3D shape
  18. 28. angles Two angles that when added together equal 180°
  19. 30. length a portion of the circle that is measured; it is a fraction of the circle
  20. 33. arc a portion of the edge of the circle that has two endpoints and is greater than 180 degrees
  21. 34. two or more angle or side measures that are exactly the same
  22. 35. A shape that has four sides, with the opposite sides being parallel and congruent, as well as having four right angles
  23. 37. Angles two angles across from each other up and down that have the same degree
  24. 38. A round shape that has no sides or corners; all points are the same distance from the center
  25. 40. arc a portion of the edge of the circle that has two endpoints and is less than 180 degrees
  26. 44. angle An angle that is exactly 90°
  27. 45. angle An angle that is greater than 90°
  28. 49. A parallelogram that has four equal sides