Geometry

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Across
  1. 3. matchstick
  2. 4. has inches and centimeters
  3. 7. angle formed on a see-saw
  4. 8. a star in the night sky
  5. 10. corner of a square
  6. 11. tip of a pyramid
  7. 13. clock arms at 3:00
  8. 14. a piece of paper
  9. 15. half a circle (measures)
Down
  1. 1. railway
  2. 2. crosswalks
  3. 5. angle of the edge of a chromebook screen
  4. 6. middle of the table
  5. 9. unit of temperature
  6. 12. laser lights
  7. 14. lines on lined paper