Geometry Vocabulary Review

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Across
  1. 2. a polygon with at least one pair of parallel sides
  2. 9. a polygon with two pairs of parallel sides
  3. 10. two angles that add to 90 degrees
  4. 11. a triangle with three sides that each have different lengths
  5. 12. an angle greater than 90 degrees
  6. 15. prism a solid where all the faces are rectangles
  7. 16. figure is a geometric figure composed of two or more smaller figures
  8. 18. a quadrilateral with at least two pairs of adjacent sides that are the same length
  9. 19. an angle that is smaller than a right angle
  10. 20. when a solid is formed when the surface of the solid is cut along enough edges so that the faces of the solid can be placed in one plane to form a connected, two-dimensional figure.
Down
  1. 1. lines that intersect to form a right angle
  2. 3. a triangle with three sides of equal length
  3. 4. two angles that add to 180 degrees
  4. 5. a parallelogram with four equal sides
  5. 6. a flat, two-dimensional surface that extends forever
  6. 7. a triangle with two equal sides
  7. 8. area The total area of the faces of a solid
  8. 9. a precise location in a flat space that has no size
  9. 11. a rectangle with four equal sides
  10. 13. the amount of three-dimensional space a solid takes up
  11. 14. an angle that measures exactly 90 degrees
  12. 17. lines that will never intersect