Geometry 1234

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Across
  1. 1. An example of this object is a ball
  2. 3. Box-shaped solid object that has six flat sides and all angles are right angles.
  3. 4. Five line segments linked end to end to create a closed figure
  4. 5. An object whose surface area is pi x r x s
  5. 6. The collection of all the points in a plane, which are at a fixed distance from a fixed point in the plane.
  6. 8. Four coplanar line segments linked end to end to create a closed figure
  7. 11. radii, joining the centre to the end points of the arc
  8. 12. A closed figure consisting of three line segments linked end-to-end.
  9. 13. When two triangles are identical in form
  10. 14. The region between a chord and either of its arcs
Down
  1. 2. In geometry it is an exact half of a sphere
  2. 5. An object whose surface area is 2 x pi x r (r+h)
  3. 7. A quadrilateral with opposite sides equal and parallel
  4. 9. Line segment from the centre of the circle
  5. 10. The region between an arc and the
  6. 13. An object whose surface area is 6asquare