Vocab Words

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Across
  1. 4. an angle within a shape that contains the base of the shape as one of its sides
  2. 6. a triangle with three acute angles
  3. 8. the side connecting two vertices of a triangle
  4. 10. three-sided closed polygon
  5. 11. the angles inside a polygon
  6. 13. segment that connects the midpoints of two sides of a triangle
  7. 14. the relationship involving two sides and the angle they form
  8. 15. the side across from an angle
  9. 17. a triangle with three equal angles
  10. 19. a line measured by how steep it is
  11. 20. no sides the same length
  12. 21. a four-sided closed figure
  13. 23. the angles that form linear pairs with the interior angles
Down
  1. 1. a triangle with one right angle
  2. 2. the angle across from a side
  3. 3. two sides the same length
  4. 5. when an object is moved from one location to another and the size and shape of the object have not changed
  5. 7. a segment from the vertex to the midpoint of the opposite side
  6. 9. all sides the same length
  7. 10. an operation that moves or changes a geometric figure in some way to produce a new figure called an image
  8. 12. a triangle with one obtuse angle
  9. 16. the sum of measures of the interior angles of a triangle that is 180 degrees
  10. 18. a quadrilateral with two pairs of parallel lines
  11. 22. the perpendicular segment from a vertex to the opposite side or to the line that contains the opposite side