Surface Areas of Pyramids and Cones

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Across
  1. 5. perpendicular segment from the vertex to the base.
  2. 7. the height of a lateral face.
Down
  1. 1. the length of the altitude.
  2. 2. its faces are triangles.
  3. 3. the point where the side faces meet.
  4. 4. its base is a regular polygon.
  5. 6. has a circular base but is also pointed.