Math Puzzle

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Across
  1. 4. a metric unit of weight
  2. 5. 1____ equals 16oz
  3. 9. same thing as decimals
  4. 10. a thee-dimensional figure with faces that are polygons
Down
  1. 1. a quadrilateral with exactly 1 pair of parallel sides
  2. 2. having the same size and shape
  3. 3. type of faces of a polyhedron
  4. 6. amount of matter in an object
  5. 7. the measure of how heavy something is
  6. 8. the amount of time that passes between two time periods