Across
- 3. two intersecting lines
- 5. to divide into two equal parts
- 7. a line segment that has both endpoints on a circle
- 8. the event in which both the first event and second event occur
- 11. two angles that add to 180 degrees
- 14. the distance around a 2-dimensional object's exterior (outside)
- 16. half the measure of the corresponding central angle
- 18. all four sides are congruent
- 19. a line segment that goes from one corner to another, but is not an edge
Down
- 1. two angles that add to 90 degrees
- 2. a point on a line segment that divides it into two equal parts
- 4. used when trying to find a side of a right triangle
- 6. all the outcomes in the sample space that are not in the original event
- 9. a piece of pizza, a portion of the circles area
- 10. means "at right angles"
- 12. two pairs of adjacent congruent sides
- 13. the event in which the first event or the second event occur
- 15. a portion of the circles circumference
- 17. a rigid transformation that involves flipping a figure over the line of reflection
- 20. the number of square units needed to fill up a region on a flat surface