Geometry Terms

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Across
  1. 3. A location in space - a dot on a piece of paper.
  2. 4. A polygon with 5 sides and 5 angles.
  3. 6. Means the "if" and "then" parts of a sentence are switched.
  4. 8. A circle's ______ is a segment that passes through the center and has its endpoints on the circle.
  5. 9. The point where the three angle bisectors meet.
  6. 10. All corresponding lengths are the same, and if all corresponding angles have the same measure.
  7. 11. An ______ of a triangle is a line segment connecting a vertex to the line containing the opposite side and perpendicular to that side.
  8. 12. A quadrilateral that has all four sides congruent.
  9. 13. A quadrilateral with four right angles
  10. 14. A ______ is a segment connecting any vertex of a triangle to the midpoint of the opposite side.
  11. 15. The point where the three altitudes meet, making them concurrent.
  12. 19. If angle A is an acute angle in a right triangle.
  13. 22. A quadrilateral having both pairs of opposite sides parallel to each other.
  14. 26. A rectangle having all four sides of equal length.
  15. 27. The line segment between two points on a given curve.
  16. 29. A regular quadrilateral.
  17. 30. Have the same measure and corresponding sides are in proportion.
  18. 31. A ____ is a quadrilateral that has two pairs of adjacent sides congruent (the same length).
  19. 32. The ________ in a right triangle is the side of the triangle that is opposite to the right angle.
  20. 34. A closed three-dimensional figure.
Down
  1. 1. A two-dimensional representation of a three-dimensional object.
  2. 2. The intersection of a graph with one of the axes.
  3. 3. It is made of straight line segments.
  4. 5. The set of all points in a plane that are equidistant from a given point in the plane, which is the center of the ____.
  5. 7. Part of a line between two points.
  6. 10. This point is the same distance from each of the three vertices of the triangles.
  7. 13. A straight line extending from the center of a circle or sphere to the circumference or surface.
  8. 16. A "straight" line that begins at a certain point and extends infinitely in one direction.
  9. 17. An _____ is a line segment where two faces intersect.
  10. 18. A polygon with exactly four sides.
  11. 20. The intersection point of two sides of a plane figure.
  12. 21. When three or more lines meet at a single point.
  13. 23. Connects two points via the shortest path and continues indefinitely (forever) in both directions.
  14. 24. The segment connecting two consecutive midpoints of a triangle.
  15. 25. A ____ is a flat, two-dimensional object.
  16. 28. The _______ of a triangle is the point where the three medians meet.
  17. 33. The length of the side opposite to angle A divided by the length of the hypotenuse of the triangle.