Mathword Puzzle

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Across
  1. 2. A way to show that a mathematical statement is true
  2. 3. A four-sided polygon with four 90 degree angles and four congruent sides
  3. 4. 2+ equal halves
  4. 6. A line that goes on forever in one direction
  5. 7. Two lines that meet and make a 90 degree angle
  6. 11. Something that is represented as the distance between two lines which is usually measured in degrees
  7. 12. The point in which two lines meet
  8. 13. The enlargement or reduction of a shape that keeps the original shape
  9. 14. The movement of a shape where all points are moved the same distance as to not alter the shape
  10. 16. A shape with two pairs of congruent adjacent sides and each pair of opposite angles are congruent
  11. 17. A 10-sided shape
  12. 18. A three-sided shape in which all angles add up to 180 degrees
  13. 20. The longest side of a triangle
  14. 21. Another word for "close to" or "next to"
  15. 22. An exact position on a plane or line
  16. 23. A line that ends both ways
  17. 24. A mark that extends in both directions forever
  18. 25. A nine-sided shape
Down
  1. 1. Two angles that add up to 180 degrees
  2. 2. The name of the number produced when finding the sum of all the sides of a shape
  3. 5. A circular movement around a fixed point
  4. 8. Two or more angles that add up to be 90 degrees
  5. 9. Looking in the mirror is an example of this
  6. 10. A four-sided shape with four 90 degree angles and all opposite sides are congruent
  7. 14. A shape that has 4 sides and only one pair of them is parallel
  8. 15. Indentations or "dents" in a shape
  9. 19. A triangle with three unequal sides
  10. 20. A seven-sided polygon
  11. 22. A category of shapes that are closed and made from straight lines