Across
- 3. Points that lie on the same straight line.
- 6. A mathematical statement that has been proven true based on postulates, definitions, and logic.
- 8. A polygon with at least one interior angle greater than 180 degrees, causing it to cave inward.
- 13. Two lines, segments, or rays that intersect to form right angles.
- 15. Angles in the same relative position at each intersection where a straight line crosses two others.
- 19. Two angles whose measures add up to exactly 90 degrees.
- 20. A line, ray, or segment that divides an angle or segment into two equal parts.
- 22. An angle that measures exactly 180 degrees.
- 23. A polygon where no internal angles are greater than 180 degrees and no vertices point inward.
- 25. A straight line segment extending from the center of a circle to its outer edge.
- 27. A transformation that stretches or shrinks a figure proportionally from a central point.
- 31. A part of a line that starts at an endpoint and extends infinitely in one direction.
- 32. A straight path of points that extends infinitely in two opposite directions.
- 33. An angle that measures greater than 0 degrees but less than 90 degrees.
- 34. A three-sided polygon whose interior angles always add up to 180 degrees.
- 35. A triangle that features at least two congruent sides and two congruent base angles.
- 36. Two angles whose measures add up to exactly 180 degrees.
- 38. Two angles that share a common vertex and side but do not overlap.
- 39. A triangle in which all three sides and all three interior angles are equal.
- 43. A figure formed by two rays that share a common endpoint called a vertex.
- 44. A closed flat shape with three or more straight sides.
- 45. A quadrilateral that has exactly one pair of parallel sides.
- 46. A transformation that flips a figure over a line, creating a mirror image.
- 47. The common endpoint where two rays, lines, or segments meet.
- 48. A statement that is accepted as true without proof, serving as a starting point for reasoning.
- 49. The longest side of a right triangle, located opposite the 90-degree angle.
- 50. A flat, two-dimensional surface that extends infinitely in all directions.
Down
- 1. A regular quadrilateral that has four equal sides and four right angles.
- 2. A quadrilateral with two pairs of opposite sides that are parallel and equal in length.
- 4. A parallelogram that features four right angles.
- 5. A transformation that turns a figure by a specific angle around a fixed central point.
- 7. The set of all points in a plane that are an equal distance from a central point.
- 9. A pair of angles on opposite sides of a transversal and between the two lines it intersects.
- 10. Having the exact same size and shape.
- 11. A line that intersects two or more other lines at different points.
- 12. A part of a line that consists of two endpoints and all the points between them.
- 13. A precise location in space with no size, only position.
- 14. An angle that measures exactly 90 degrees.
- 16. A straight line segment passing through the center of a circle, connecting two points on the edge.
- 17. The property of figures that have the same shape and proportional sides, but different sizes.
- 18. A transformation that slides every point of a figure the exact same distance in the same direction.
- 19. Points or lines that lie within the same flat surface.
- 21. A triangle where all three sides and all three angles have different measurements.
- 24. A pair of nonadjacent angles formed by intersecting lines that are across from each other and congruent.
- 26. Lines in three-dimensional space that are not parallel and do not intersect because they are in different planes.
- 28. An angle that measures greater than 90 degrees but less than 180 degrees.
- 29. A quadrilateral with two pairs of adjacent, congruent sides, where opposite sides are not equal.
- 30. Lines in the same plane that never intersect and are always equidistant.
- 37. A point that divides a segment into two equal, congruent segments.
- 40. A four-sided polygon whose interior angles always add up to 360 degrees.
- 41. A polygon that is both equilateral, meaning all sides are equal, and equiangular, meaning all angles are equal.
- 42. A parallelogram that features four congruent sides.