Area Puzzle

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Across
  1. 5. the measurement of the outside of a shape (example: L+W+L+W)
  2. 7. (B x H) 4 right sides and opposite sides are equal
  3. 10. (B x H) two pairs of parallel sides and opposite sides are equal
  4. 12. ( ½ b+b x H) two sides are parallel
Down
  1. 1. ( ½ B x H) 3 sided polygon
  2. 2. (S2 or B x H) 4 right angels and 4 equal sides
  3. 3. 4 sided polygon
  4. 4. two pairs of adjacent sides of the same length
  5. 6. the measurement of the inside of a shape (example: L x W)
  6. 8. a branch of mathematics that studies the sizes, shapes, positions, angles, and dimensions of things.
  7. 9. a figure classified by if it has straight lines for sides and no curves
  8. 11. parallelogram with 4 equal sides