Geometry Crossword

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Across
  1. 2. Used to describe a triangle by its angles. Has to have all of its angle below 90 degrees.
  2. 5. A word that is used to describe an angle. Angle is suppose to be extending the figure outside of the figure.
  3. 7. It is a quadrilateral. Contains two pairs of adjacent sides equal.
  4. 8. It is a closed plane figure. It has straight line sides which do not cross.
  5. 12. It has four sides. Has to have four equal angles that are 90 degrees.
  6. 14. It is a line segment. It joins a pair of vertices across the polygon.
  7. 15. A word that is used to describe a polygon. Polygon that has no interior reflex angles.
  8. 16. Used to describe a triangle by its angles. Has to have an angle that measures exactly 90 degrees.
  9. 17. It is known as a quadrilateral. It has opposite sides that are parallel to each other.
  10. 18. Used to describe a triangle by its angles. Has to have one of its angles above 90 degrees.
  11. 19. Describes a part in a triangle. It is a vertex between the equal side of a triangle.
Down
  1. 1. Used to describe a triangle. This kind of triangle has to have all sides different length.
  2. 3. It is known as a rhombus. With its four equal sides, it also has five equal angles of 90 degrees.
  3. 4. It is a point in a polygon where two sides meet. A polygon can have multiple of this.
  4. 6. It is a polygon with three sides. Can be classified by the measurement of its sides or angles.
  5. 9. Known as a quadrilateral. Has only one pair of opposite sides parallel.
  6. 10. It is a polygon with only four sides. There are six different types of quadrilaterals.
  7. 11. Is used to describe a triangle. Triangle that has to have two sides equal.
  8. 13. Describes a type of triangle. Triangle that has all of its sides equal length.
  9. 16. It is a quadrilateral. Has all of its sides equal measurement.