final review

5. a line that intersects a circle at two points
9. the point in a triangle where all three angle bisectors meet, equidistant from the sides
10. a segment that connects the center of bases in cylinders
11. the opposite side from a right angle in a right triangle, the longest side of a right triangle
13. a polyhedron with four faces
14. a solid formed by polygons that enclose a single region of space
15. the ratio of the opposite leg of a triangle to the hypotenuse of the triangle
18. dividing the length of an arc by that circle's radius
20. the point of concurrency of all three altitudes of a triangle
21. the space between two concentric circles
23. a point of concurrency made my 3 medians of a triangle
24. the altitude that is the radius of a polygon, it is perpendicular to the side of the polygon
25. the point of intersection of three or more edges in a polyhedron

1. the ratio of the opposite leg of a triangle to the adjacent leg of the triangle
2. the segment that connects the midpoint of one side of a triangle to the opposite vertex, triangles have three of these
3. the equation for this is n(n-1) over 2
4. a line segment that starts outside the circle and ends at exactly one point on the circle, and is perpendicular to the radius
5. region between two radii and an arc of a circle, equation a/360 x pi r squared
6. a theorem for triangles that says a squared + b squared = c squared
7. a whole number times itself
8. minor arc formed by a central angle
12. the circle at the base of a hemisphere
16. a fraction of the circumference of a circle
17. a point of concurrency where all three perpendicular bisectors of a triangle meet, equidistant from the vertices
19. the segment where two faces intersect
22. the ratio of the adjacent leg of a triangle to the hypotenuse of the triangle