Math Vocabulary

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Across
  1. 3. An unproven proposition
  2. 6. A triangle with a right angle in it
  3. 7. An equilateral rectangle
  4. 10. Where two lines meet
  5. 13. Half of the diameter
  6. 16. Moving a shape in a plane by adding or subtracting the x and/or y
  7. 17. A ____ extends forever in two directions
  8. 19. (2, -3) for one
  9. 20. A shape with 4 sides is a ______________
  10. 21. A ___________ has half the volume of a sphere
Down
  1. 1. The proof of a hypothess
  2. 2. Extends forever in all directions
  3. 4. How much a shape in a plane grows after the transformation
  4. 5. Two polygons with the same shape
  5. 8. A triangle with only acute angles.
  6. 9. An angle of a triangle that is less than 90 degrees
  7. 11. Equalshape and size
  8. 12. The circumference of a circle is π*_______
  9. 14. An angle in a triangle that is exactly 90 degrees
  10. 15. A polygon with 10 sides is a _______
  11. 18. 4/3πr^3 is the volume of a ______