Dariah crossword puzzle

1234567891011
Across
  1. 5. measurement of a surface the area of a triangle
  2. 6. a term used to describe what a 3D shape
  3. 7. polygon
  4. 10. is a shape that has four sides
  5. 11. space that a substance or 3D shape
Down
  1. 1. a four-side shape
  2. 2. them on the other so that they coincide
  3. 3. The front of a shape
  4. 4. has equal sides and angles.
  5. 8. outside of a three-dimensional shape.
  6. 9. shape that has two identical shapes