Mathematics Crossword

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Across
  1. 1. a rectangular prism
  2. 4. the volume of this 3d shape is a^3
  3. 5. perimeter is a+b+c
  4. 6. 3d shape with flat base ,curved surface pointed up
  5. 7. sides and angles of figure are equal
Down
  1. 1. set of all the point is equidistant from center
  2. 2. the lines never meet
  3. 3. polygon with six sides