Unit 8 Vocabulary- Solid Geometry

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Across
  1. 4. – a two-dimensional model or drawing that can be folded into a three-dimensional solid
  2. 7. – the measurement attribute that describes the number of square units a figure or region covers
  3. 10. – the length of a side that is perpendicular to both bases
  4. 11. – any two congruent, opposite, and parallel faces shaped like rectangles; exactly 3 possible sets
  5. 12. – the sum of all the surface areas of a figure; the number of square units needed to cover all of the surfaces (bases and lateral area)
  6. 14. – the measurement attribute of the amount of space occupied by matter
  7. 15. – a figure that has measurements including length, width (depth), and height
  8. 16. – the point (corner) where three or more edges of the three-dimensional figure meet
  9. 17. – a triangular face opposite the common vertex (apex) where the 3 triangular faces meet
  10. 18. – the two congruent, opposite and parallel faces shaped like triangles
  11. 19. – a three-dimensional figure containing two congruent and parallel faces that are polygons
  12. 20. – a three-dimensional figure containing a base that is a polygon and the faces are triangles that share a common vertex, also known as an apex
  13. 21. – where the sides of two faces meet on the three-dimensional figure
Down
  1. 1. – the set of numbers that can be expressed as a fraction , where a and b are counting (natural) numbers
  2. 2. – the length of a perpendicular line segment from the vertex of the pyramid to the base
  3. 3. – the length of a side that is perpendicular to both bases
  4. 5. – the sum of all the lateral surface areas of a figure; the number of square units needed to cover the lateral view (area excluding the base(s) of a three-dimensional figure)
  5. 6. – a rectangular face opposite the common vertex (apex) where the 4 triangular faces meet
  6. 8. – the length of a perpendicular line segment from the vertex of the pyramid to the base
  7. 9. – a flat surface of a three-dimensional figure
  8. 13. – of equal measure, having exactly the same size and same shape