Geometry

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Across
  1. 6. square Quadrilateral
  2. 7. prism
  3. 8. diameter rhombus
  4. 9. Perpendicular
  5. 10. acute chord
  6. 12. angle
  7. 14. decagon
  8. 15. Circumference
Down
  1. 1. supplementary
  2. 2. IntersectingLineSegments
  3. 3. Lines
  4. 4. rectangle circle
  5. 5. Vertex ScaleneTriangle
  6. 11. square line
  7. 13. Collinearity