Geometry Terms 1, 2, 3, 4 and 5

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Across
  1. 8. To divide into two equal parts
  2. 9. The longest side of a right triangle
  3. 10. A shape with three sides
  4. 12. The distance around a circle
  5. 15. The amount of space a 3D shape takes up
  6. 16. A four-sided shape
  7. 17. A line where two faces of a 3D shape meet
  8. 19. Lines that never intersect
Down
  1. 1. A line that passes through the center of a circle
  2. 2. A point where two lines meet
  3. 3. Lines that meet at a 90-degree angle
  4. 4. An angle that measures more than 90 degrees
  5. 5. Having the same shape and size
  6. 6. The total area of all the faces of a 3D shape
  7. 7. A closed shape with three or more sides
  8. 10. A statement proven to be true in math
  9. 11. An angle that measures less than 90 degrees
  10. 13. Half of a circle’s diameter
  11. 14. An angle that measures exactly 90 degrees
  12. 18. The amount of space inside a shape