Shapes starter

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Across
  1. 4. A shape with exactly one pair of parallel sides
  2. 7. Any shape with four sides
  3. 8. A 3-D shape where all the edges are equal and the faces are all squares
Down
  1. 1. A prism with a circular cross-section
  2. 2. A 3-D shape that has the same cross-section along its length
  3. 3. The total area of the faces on a 3-D shape
  4. 5. The longest distance across a circle, passing through the centre
  5. 6. The distance from the centre of a circle to the circumference