Topic 7 Vocabulary Crossword

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Across
  1. 4. A triangle where all three angles are less that 90 degrees.
  2. 9. A flat surface on a 3D shape.
  3. 13. A triangle with one right angle.
  4. 14. The total area added up of all faces of a shape.
  5. 17. Two lines that meet to form a right angle (90 degrees).
  6. 18. A math rule or equation used to find area of a given shape or to solve a problem.
  7. 19. A line where two faces meet on a 3D shape.
  8. 20. A four-sided shape with at least one pair of parallel sides.
  9. 21. The amount of space inside a shape, measured in square units.
  10. 22. A shape that has four equal side lengths with angles that may not be 90 degrees.
Down
  1. 1. A triangle with all sides the same length and all angles equal.
  2. 2. A shape with four sides where opposite sides are parallel and equal.
  3. 3. A triangle with one angle greater than 90 degrees.
  4. 5. A quadrilateral with four sides that are all the same length and four right angles.
  5. 6. The bottom side of a shape or the side you measure from.
  6. 7. A point where two or more lines or edges meet.
  7. 8. The amount of space inside a 3D shape.
  8. 10. When a shape can be folded in half and both sides match, looks the same on both sides.
  9. 11. A polygon with four sides.
  10. 12. The distance from the base to the tope, measured straight up and down.
  11. 15. A quadrilateral with four sides and four right angle that is not a square.
  12. 16. A closed shape with straight sides.