Geometry

2. Angle > 90 degrees
5. two angles that have a common vertex, lie on the same plane, and have a common side but no interior points
8. A solid or hollow object that tapers from a circular or roughly circular base to a point.
10. the sum of all the sides of a polygon
12. Angle < 90 degrees
13. A triangle with at least 2 congruent sides.
16. divides an angle into 2 equal parts
18. A special type of rectangle that has equilateral (same length) sides and parallel opposite sides.
21. 8 sided figure
23. Pir^2 r=...
25. a quadrilateral with two pairs of parallel sides.
26. 3.14...
28. points that lie on the same plane
29. a unit of measure used in measuring angles and arcs
30. A 3 dimensional, round body whose surface is at all points equidistant from the center.
31. 7 sided figure
33. Lines that never intersect
35. 5 sided figure
37. the amount of space that a substance or object occupies
39. A two-dimensional, closed, four-sided figure with four right angles.
40. 3 sided figure
42. extends in 1 direction infinitely
45. the common endpoint
47. the perimeter of a circle
48. A three-dimensional figure on which the faces are triangular and converge to a single point at the top.

1. having the same measure
3. a segment, line, or plane that intersects a segment at its midpoint
4. A closed four-sided figure with parallel opposite sides.
6. 2 lines which make a 90 degree angle.
7. when all sides of a shape are the same length.
9. closed figure, sides are all segments.
11. A measure of the total area that the surface of the object occupies.
14. describes the direction and steepness of the line.
15. A three-dimensional figure with identical equilateral squares as faces
17. extends in both directions infinitely
19. 4 sided figure.
20. two angles whose measures have a sum of 180
22. A quadrilateral that has at least one pair of parallel sides
24. Angle = 90 degrees
25. a precise location on a plane.
27. two angles whose measures have a sum of 90
32. the branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs.
34. the extent or measurement of a surface
36. formed by two non colinear rays that have a common endpoint
38. Part of the circumference of a circle
41. A line with two endpoints.
43. Twice the radius of a circle
44. the point halfway between the endpoints of a segment
45. Angles two non adjacent angels formed by two intersecting lines
46. Pair a pair of adjacent angles whose non common sides are opposite rays