Adin's Crossword Puzzle

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Across
  1. 2. Two angles that measure up to 180 degrees.
  2. 4. Lines that never intersect.
  3. 5. A line that divides something into two equal parts.
  4. 11. A figure with three vertices.
  5. 12. A mirror image of a shape.
  6. 13. Balanced proportions
  7. 14. The angles opposite each other when two lines cross.
  8. 15. Two angles that have a common vertex but do not overlap.
Down
  1. 1. A line that intersects parallel lines to form several angle relationships.
  2. 3. To have the same shape, size, or measurement
  3. 6. Two angles that measure up to 90 degrees.
  4. 7. Mathematics that involves shapes and figures.
  5. 8. The motion of a rigid body around a fixed point.
  6. 9. A transformation that moves every point of a figure by the same direction and distance.
  7. 10. Proportional stretch or shrink of an image on a coordinate plane.