triangle

12345678910
Across
  1. 3. Base (can be any polygon) and triangular lateral faces
  2. 4. The lines where two faces meet.
  3. 6. Area The total area of all the external faces of a 3D object.
  4. 7. The points where the edges meet.
  5. 9. 1 circular base and a curved lateral surface
  6. 10. 2 circular bases and a curved lateral surface
Down
  1. 1. Curved surface, no faces
  2. 2. The flat surfaces that make up a 3D shape.
  3. 5. 6 square faces
  4. 8. 6 rectangular faces