Geometry

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Across
  1. 4. shape with four sides, two pairs of sides are same
  2. 5. a shape with four sides, two sides are the same
  3. 8. shape with four equal sides
Down
  1. 1. takes up space horizontally and vertically
  2. 2. no vertices
  3. 3. shape with three vertices
  4. 6. two pairs of vertices, one pair is wide, one pair is slim
  5. 7. also called a corner
  6. 8. connects two vertices