mathy word definitions

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Across
  1. 1. A 3 Dimensional shape with faces.
  2. 4. A specific point on a grid.
  3. 6. 90 degrees, a corner or the side of a box.
  4. 7. Lines that intersect.
  5. 9. The amount of space inside a 3D shape.
  6. 10. The space inside a shape.
  7. 15. Two equal sides and one odd side.
Down
  1. 2. A triangle with 3 different lengths sides.
  2. 3. The outside lines of a shape.
  3. 5. A polygon with equal sides and equal angles.
  4. 8. A 3D triangle
  5. 11. A shape with three or more sides.
  6. 12. The area of each face on a 3D shape.
  7. 13. The corner or meating point of a polygon.
  8. 14. An unfolded or flat 2D shape.