Ch.7 Words to Know

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Across
  1. 3. The area A of a triangle is one-half the product of its base b and its height h.
  2. 8. A two-dimensional representation of a solid
  3. 11. A solid whose faces are all polygons.
  4. 12. The product of the area of the base and the height of the prism.
  5. 13. Surface area is measured in _______ _______.
  6. 15. Volume is measured in _____ _____.
  7. 16. A prism with rectangular bases.
  8. 18. A three-dimensional figure is a measure of the amount of space that it occupies.
  9. 20. A quadrilateral that has two pairs of adjacent sides with the same length and opposite sides with different lengths.
  10. 21. To find the area of a composite figure, separate it into figures with areas you know how to find.
  11. 23. A polyhedron that has one base. The lateral faces are triangles.
  12. 25. A line segment where two faces intersect.
  13. 26. A polyhedron that has two parallel, identical bases. The lateral faces are parallelograms.
Down
  1. 1. Formula used when multiplying length times width.
  2. 2. The area A of a trapezoid is one-half the product of its height h and the sum of its bases b1 and b2.
  3. 4. Amount of surface it covers.
  4. 5. The area A of a parallelogram is the product of its base b and its height h.
  5. 6. A point where three or more edges intersect.
  6. 7. A pyramid with a triangular base.
  7. 9. A closed figure in a plane that is made up of three or more line segments that intersect only at their endpoints.
  8. 10. A solid is the sum of the areas of all of its faces.
  9. 14. A prism with triangular bases.
  10. 17. A pyramid with a square base.
  11. 19. Made up of triangles, squares, rectangles, and other two-dimensional figures.
  12. 22. A flat surface of a polyhedron.
  13. 24. A three-dimensional figure that encloses a space.