Plane Shapes

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Across
  1. 4. a triangle with no equal sides
  2. 5. a four-sided shape with opposite sides equal
  3. 7. type of triangle with three equal sides
  4. 9. a three-sided shape
Down
  1. 1. straight line drawn from left to right
  2. 2. a straight line drawn from top to bottom
  3. 3. formed when two lines, rays or edges meet
  4. 6. a flat shape with four equal sides
  5. 8. a triangle with 2 equal sides