Geometry

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Across
  1. 6. a shape with one pair of parallel sides
  2. 7. a shape with 4 sides and 4 corners
  3. 10. a trianlge with three 60 degree angles
Down
  1. 1. a parallelogram with congruent diagonals
  2. 2. a triangle with 2 congruent sides and 2 congruent angles
  3. 3. a shape with 4 congruent sides and 2 pairs of congruent angles
  4. 4. the side opposite a right angle in a triangle
  5. 5. a shape with 2 pairs of parallel and congruent sides
  6. 8. a line that goes from one corner to another in quadrilateral
  7. 9. a shape with congruent and perpendicular diagonals