Geometry crossword Puzzle

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Across
  1. 5. Measurement of a three dimensional shape
  2. 6. Identical in form
  3. 7. A strait Line at 90 degrees
  4. 8. In the same place
  5. 11. Each angular point of a polygon
  6. 12. divide the line segment into 2 equal parts
Down
  1. 1. An angle divided into 2 to create equal angles
  2. 2. A point in the middle of 2 lines
  3. 3. Points lying in the same line
  4. 4. A distance around a 2 dimensional shape
  5. 9. Any closed curve consisting of a set line
  6. 10. Figure form by 2 rays