'R' 'S' Math Words

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Across
  1. 1. a selection taken from a larger group
  2. 3. a fraction that has been flipped upside down
  3. 5. a way of comparing quantities
  4. 11. half of a circle
  5. 12. a parallelogram with 4 right angles
  6. 13. mirror image
Down
  1. 1. part of a line with beginning and end
  2. 2. part of a line that has a starting point and continues in only one direction
  3. 4. when one quantity is compared to another (miles per hour)
  4. 5. a parallelogram with 4 congruent sides
  5. 6. difference between largest and smallest numbers in a set
  6. 7. can be expressed as a fraction
  7. 8. triangle with no congruent sides
  8. 9. a turning movement around a fixed point
  9. 10. same shape, different size