Geometric Shapes

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Across
  1. 3. It has the same cross-section all along its length.
  2. 4. The shape of a hula hoop
  3. 6. A plane figure with 3 straight sides and 3 angles.
  4. 7. It is another 3D shape that has a flat base (which is of circular shape) and a pointed tip at the top.
Down
  1. 1. A triangular base is called?
  2. 2. It is shaped like a ball and is perfectly symmetrical.
  3. 5. The shape stays the same from the base to the top.