Maths

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Across
  1. 2. all the sides are equal and all the inside angles are equal.
  2. 3. a convex polyhedron bounded by six quadrilateral faces
  3. 4. a three-dimensional geometric shape that tapers smoothly from a flat base to a point
  4. 6. a three-dimensional solid object bounded by six square faces
  5. 7. a polygon with three edges and three vertices.
Down
  1. 1. lines in a plane which do not meet
  2. 3. a shape consisting of all points in a plane that are at a given distance from a given point, the centre
  3. 5. a six-sided polygon