G8_Ch12

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Across
  1. 4. A quadrilateral with all four sides equal in length.
  2. 5. A quadrilateral with two pairs of opposite sides parallel.
  3. 6. A polygon with four sides, four vertices, and four interior angles. The sum of its interior angles is 360°.
  4. 8. A polygon with eight sides and eight vertices.
  5. 9. A quadrilateral with exactly one pair of parallel sides.
  6. 10. A polygon with six sides and six vertices.
  7. 11. A closed 2D figure formed by three or more straight line segments that meet only at their endpoints.
Down
  1. 1. In a trapezoid, the two angles adjacent to the same base. In an isosceles trapezoid, each pair of base angles is equal.
  2. 2. A polygon with ten sides and ten vertices.
  3. 3. A line segment connecting two non-adjacent vertices of a polygon.
  4. 5. A polygon with five sides and five vertices.
  5. 7. The two non-parallel sides of a trapezoid. In an isosceles trapezoid, the legs are equal in length.