triangles, angles, and lines, defination

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Across
  1. 3. A line, ray, or segment that passes through the midpoint of another segment, dividing it into two equal parts.
  2. 5. A pair of angles formed when a transversal intersects two lines. They are in the same relative position at each intersection, on the same side of the transversal, and on different lines.
  3. 8. A line or ray that divides an angle into two equal, or congruent, angles.
  4. 9. A triangle that has one angle that measures exactly 90 degrees.
  5. 10. Three or more points that lie on the same straight line.
  6. 11. Points that do not all lie on the same straight line.
  7. 12. Two lines that intersect to form a 90-degree (right) angle.
  8. 13. A geometric configuration where a third line, called the transversal, intersects two other lines at two distinct points.
  9. 14. Two planes in the same three-dimensional space that never intersect.
  10. 15. A triangle that has one angle measuring more than 90 degrees.
  11. 16. A line that passes through a plane at a single point.
Down
  1. 1. A pair of non-adjacent angles that are opposite each other when two lines intersect. Vertical angles are always equal in measure.
  2. 2. Two angles that share a common vertex and a common side, but do not overlap.
  3. 4. Two lines in the same plane that are always the same distance apart and will never intersect.
  4. 6. A triangle where all three angles measure less than 90 degrees.
  5. 7. Two rays that share the same endpoint and extend in opposite directions to form a straight line.