Across
- 2. a line segment that passes through the inside of a circle that starts and ends on the perimeter
- 3. half a sphere and its circular base
- 4. the region between two concentric circles
- 5. a line that intersects a circle in two points
- 9. the point of concurrency for three angle bisectors
- 13. the only bisector that is also perpendicular to the segment, creates a line of symmetry
- 16. the segment that connects the midpoints of two sides of a triangle
- 18. a set of all points in space at a given distance from a given point
- 20. the point of concurrency for three altitudes
- 24. a minor arc formed by central angles
- 25. the measure of the amount of space contained in a solid
Down
- 1. a solid formed by polygons that enclose a single region of space
- 2. the point of concurrency for three perpendicular bisectors
- 6. a line on the outside of the circle that has one point touching the outside of the circle
- 7. the angle with it's vertex at the center of the circle
- 8. the longest side of a right triangle
- 10. the given distance from the outside the center of a circle
- 11. the altitude that is the radius of the polygon
- 12. the study of the relationships between the sides and the angles of triangles
- 14. ratio of opposite/adjacent
- 15. an arc that is smaller than a semicircle
- 17. when a set of lines has a point in common
- 18. ratio of opposite/hypotenuse
- 19. a polyhedron with two faces, called bases, that are congruent, parallel polygons
- 21. a polyhedron with four faces
- 22. ratio of adjacent/hypotenuse
- 23. the segment connecting the vertex of a triangle to the midpoint of it's opposite side