Geometry

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Across
  1. 3. An angle that measures less than 90°.
  2. 6. Intersect at a right angle
  3. 7. Measures more than 180° but less than 360°.
  4. 9. Measures exactly 90°
  5. 10. Measures more than 90° but less than 180°
  6. 11. A corner point where edges meet.
Down
  1. 1. Two lines which never meet
  2. 2. The line where two faces meet.
  3. 4. Measures exactly 180°
  4. 5. A straight path that extends forever in both directions
  5. 7. Has one endpoint and goes on infinitely in one direction
  6. 8. A flat surface of a solid (3-D shape).