geometry

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Across
  1. 6. The measure of a right angle in degrees
  2. 7. Two lines that never intersect
  3. 11. A triangle with two sides of equal length
  4. 13. A closed shape with straight sides
  5. 14. 3D shape with a circular base of which it's sides move up to one point
  6. 15. The T in SohCahToa
  7. 16. Polygon with three sides
  8. 18. A four-sided polygon
  9. 20. The point where two rays of an angle meet
  10. 21. Same size and shape
Down
  1. 1. Mathematics in terms of shapes
  2. 2. Used in the final step of Pythagorean theorem
  3. 3. The amount of space inside a 2D shape
  4. 4. Center point of a line
  5. 5. The longest side of a right triangle
  6. 8. The amount of space in a 3D shape
  7. 9. Divide in two equal parts
  8. 10. A line meeting another line at a 90 degree angle
  9. 12. Theorem that is used to find missing sides of right triangles
  10. 17. Graph that can be used to prove similarity or congruence
  11. 19. A straight path that extends infinitely in both directions