Chapter 7 Vocabulary

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Across
  1. 3. Angle , An angle that measures less than 90º.
  2. 6. Angles, Angles with equal measures.
  3. 8. A segment that has both endpoints on the circle.
  4. 11. Triangle , A triangle containing a right angle.
  5. 12. Triangle, A triangle with three congruent sides.
  6. 15. Angles, Two angles whose measures add to 90º.
  7. 17. Triangle , A triangle with all angles measuring less than 90º.
  8. 18. Lines, Lines that have exactly one point in common.
  9. 19. Segment, A part of a line between two endpoints.
  10. 21. Lines, Lines that lie in different planes that are neither parallel nor intersecting.
  11. 22. A segment that passes through the center of a circle and has both endpoints on the circle.
  12. 23. A quadrilateral with exactly one pair of parallel sides.
Down
  1. 1. Triangle , A triangle with at least two congruent sides.
  2. 2. Angles, A pair of opposite congruent angles formed by intersecting lines.
  3. 4. Sides, Sides that have the same length.
  4. 5. Angle, An angle that measures 180º.
  5. 7. , On an angle or polygon, the point where two sides intersect.
  6. 8. , The set of points in a plane that are all the same distance from a given point, called the center.
  7. 9. Triangle , A triangle with no congruent sides.
  8. 10. Angles, Two angles whose measures have a sum of 180º.
  9. 13. Polygons -,Polygons with the same shape and the same size.
  10. 14. A rectangle with four congruent sides.
  11. 16. A figure formed by two rays with a common endpoint called the vertex.
  12. 17. Angles, Angles in the same plane that have a common vertex and a common side.
  13. 20. A straight path that extends without end in opposite directions.