GEOMETRY

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Across
  1. 3. ,The distance around the circle
  2. 5. ,A rectangle having all four sides of equal length
  3. 9. ,A quadrilateral whose area is base x height
  4. 11. ,A line segment with its endpoints on the circle
  5. 12. ,Line segment from one vertex to opposite vertex
  6. 14. ,The sum of the measure of all the sides
  7. 15. ,A quadrilateral whose area is length x breadth
Down
  1. 1. ,Half of the circle
  2. 2. ,Longest side of a right-angled triangle
  3. 4. ,A line passes through the center of the circle
  4. 6. ,A polygon with four sides
  5. 7. ,The amount of surface of the plane covered by a closed figure
  6. 8. ,The intersection point of two sides of a plane figure
  7. 10. ,A part of a line having only one endpoint
  8. 13. ,A three sided Polygon