Geometry End of Year

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Across
  1. 2. a line segment that goes from one corner to another, but is not an edge
  2. 3. a segment that connects the midpoints of any two sides of a triange
  3. 6. a line segment that has both endpoints on a circle
  4. 8. the distance around a 2-dimensional object's exterior
  5. 9. property that states if x=y and y=z then x=z
  6. 10. the event in which both the first AND second event occur
  7. 12. a point on line segment that divides it into two equal parts. The half way point of a line segment
  8. 15. what it's called when two lines meet each other at a 90 degree angle
  9. 17. means to divide into two equal parts, dividing line is called a bisector.
  10. 18. a line perpendicular to the circle's radius
  11. 20. property that says the measure of any side or angle is equal to itself
Down
  1. 1. a rigid transformation that involves turning an entire figure around a fixed point
  2. 4. property that states if x=y, then y can be substituted in for x in any expression
  3. 5. the event in which the first OR second event occur
  4. 7. a transformation that maintains the shape of the figure but multiplies its dimensions by a chosen factor
  5. 11. a rigid transformation that involves flipping a figure over the line of reflection
  6. 13. formed by two radii of a central angle and the arcc between their endpoints on the circle
  7. 14. set of points a fixed distance from a center and is defined by a central angle
  8. 16. when the outcome of one event does not change the outcome of the other
  9. 19. the number of square units needed to fill up a region on a flat surface