Maths Puzzle 1

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Across
  1. 2. A flat shape with 4 straight sides
  2. 4. Measuring the longest side of a shape
  3. 6. The amount of space taken up by 2- dimensional shape
  4. 7. A plane shape with straight side
  5. 8. A point where 2 or more line segments meet.A corner
  6. 9. The distance around the edge of a shape
Down
  1. 1. Lines that are at right angles to each other
  2. 3. Measuring the shortest side of the shape
  3. 5. A 3 sided flat shape with straight sides
  4. 8. The amount of 3 dimensional space something takes up