Geometry

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Across
  1. 4. Vertex ScaleneTriangle
  2. 7. IntersectingLineSegments
  3. 10. square Quadrilateral
  4. 11. acute chord
Down
  1. 1. supplementary
  2. 2. angle
  3. 3. rectangle circle
  4. 5. Perpendicular
  5. 6. diameter rhombus
  6. 8. square line
  7. 9. Lines