MATH IS HARD

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Across
  1. 2. A 3D shape with five sides 4 of them being triangles 1 being a squaren
  2. 6. A closed shape with at least 3 or more sides.
  3. 7. A polygon with equal sides and interior angles
  4. 9. A solid geometric figure whose two end faces are similar, equal, and parallel
  5. 10. The total area of all the surfaces combined in a 3D shape
  6. 11. An angle of 90°
  7. 12. A triangle with three unequal sides
  8. 13. The thing you fold up to make a 3D shape.
  9. 15. The full amount of lines around a 2D shape.
Down
  1. 1. Two lines that are parallel each other.
  2. 3. A triangle with two equal sides in length.
  3. 4. The amount of space a object takes up
  4. 5. The spot where the X and Y numbers meet.
  5. 8. A point where edges meet on a 3D shape
  6. 14. The amount of squares inside a shape.