Topic 7 Geometry

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Across
  1. 2. A quadrilateral with two pairs of adjacent sides that are equal in length.
  2. 3. A 3-dimensional figure with two parallel polygonal faces that are the same size and shape.
  3. 7. A polygon with three side.If you add up all the angels you will get 180.
  4. 9. The amount of space that a two-dimensional shape takes up.
  5. 12. A quadrilateral with both pairs of opposite sides parallel.
  6. 13. Where two sides meet (2-dimensional) When three or more edges meet. (3-dimensional)
  7. 14. The flat surface shaped like a polygon.
  8. 16. The math term that is based around shapes.
  9. 19. Has a bas3 of a polygon and triangular faces that meet at one vertex.
  10. 20. The amount of space a 3-dimensional object takes up.
Down
  1. 1. When two lines meet forming four ninety degree angles.
  2. 4. The sum of all the areas of its faces.
  3. 5. The equation used to find an area, perimeter, ect.
  4. 6. A 2-dimensional patter that can be folded into a 3-dimensional pattern.
  5. 8. When you break one shape into multiple shapes.
  6. 10. A three-dimensional figure made of flat polygon-shaped surfaces called faces
  7. 11. A quadrilateral wit 1 set of parallel lines.
  8. 15. The bottom of a three dimensional object.
  9. 17. This shape is sometimes mistakingly called a diamond.
  10. 18. Formed by the intersection of two faces.