Area

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Across
  1. 5. group of numbers, variables, and operation symbols
  2. 8. quadrilateral with opposite sides parallel
  3. 11. side of a shape which the height is measured from
  4. 12. perpendicular distance from the base to the opposite side or vertex
  5. 13. length in one direction
Down
  1. 1. polygon with 3 sides
  2. 2. make by combining parts
  3. 3. to break apart numbers and shapes
  4. 4. 2D closed figure made with 3 or more straight sides
  5. 6. the amount of space inside a 2D shape
  6. 7. result of multiplication
  7. 9. result of subtraction
  8. 10. meeting to form a right angle