Geometry

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Across
  1. 2. The vertex is equal. A polygon
  2. 5. Prolongs infinitely in two dimensions
  3. 7. They have the same measure. Equal.
  4. 12. An endpoint on one side and keeps going on forever on the other side
  5. 13. A triangle with 1 angle greater than 90 degrees
  6. 14. A round shaped figure with no edges or corners
  7. 15. A chain through which the truth of a given statement is verified
Down
  1. 1. Divides an angle into two smaller congruent angles
  2. 3. The study of triangles. Relationships between the sides and angles of triangles
  3. 4. A four sided plane with opposite sides
  4. 6. A branch of mathematics with points, lines, shapes, etc
  5. 8. A mirror image of a shape
  6. 9. A quadrilateral with two pairs of adjacent equal sides
  7. 10. A point where two or more edges, curves, or lines meet or intersect
  8. 11. A figure formed by two rays or lines that share a common endpoint