End of Year Geometry Crossword

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Across
  1. 4. Lines that intersect to form right angles.
  2. 6. A triangle with all three sides equal.
  3. 7. Two angles whose measures add up to 90°.
  4. 10. A transformation that slides a figure without turning or flipping it.
  5. 11. An exact location in space with no size or shape.
  6. 13. Two angles that share a common side and vertex.
  7. 16. A segment from the center of a circle to a point on the circle.
  8. 17. Two angles whose measures add up to 180°.
  9. 19. The distance around a polygon.
  10. 20. A segment that passes through the center of a circle with endpoints on the circle.
  11. 23. A transformation that turns a figure around a point.
  12. 26. A formula used to find the distance between two points on a coordinate plane.
  13. 28. A point exactly halfway between the endpoints of a segment.
  14. 30. A transformation that enlarges or reduces a figure.
  15. 31. The length between two points.
  16. 32. An angle that measures exactly 90°.
  17. 34. A polygon with three sides and three angles.
  18. 35. A transformation that flips a figure across a line.
  19. 38. A point at the end of a segment or ray.
  20. 40. Lines in the same plane that never intersect.
  21. 43. A triangle with no equal sides.
  22. 44. Opposite angles formed when two lines intersect. They are congruent.
  23. 45. A change in the position, size, or shape of a figure.
Down
  1. 1. A formula used to find the midpoint of a segment.
  2. 2. An angle that measures greater than 90° but less than 180°.
  3. 3. The total area of all the surfaces of a three-dimensional figure.
  4. 5. A theorem used to find the side lengths of a right triangle
  5. 8. A polygon with four sides.
  6. 9. A closed figure made of straight line segments.
  7. 12. A triangle with at least two equal sides.
  8. 14. Points that lie on the same plane.
  9. 15. A straight path that extends forever in both directions.
  10. 18. The vertical axis on a coordinate plane.
  11. 21. A measure of the steepness of a line.
  12. 22. The point where two or more figures meet or cross.
  13. 23. A part of a line with one endpoint that extends forever in one direction.
  14. 24. The longest side of a right triangle, opposite the right angle.
  15. 25. Points that lie on the same line.
  16. 27. The ratio comparing the dimensions of a figure and its image after a dilation.
  17. 29. The amount of space inside a three-dimensional figure.
  18. 33. An angle that measures exactly 180°.
  19. 36. The distance around a circle.
  20. 37. Segment A part of a line with two endpoints.
  21. 39. The amount of space inside a figure.
  22. 41. A flat surface that extends forever in all directions.
  23. 42. The horizontal axis on a coordinate plane.