Geometry Puzzle

2. A three-dimensional shape with one circular base. It is connected by a curved surface ending at a single vertex.
8. Two angles that have a sum of 180 degrees. Seen as a ray coming out of a straight line in any direction.
11. Two lines that form a right angle. The x-axis and y-axis on a plot graph form perpendicular lines.
12. The sum of the lengths of the sides of the polygon. You add every single side together to get the perimeter.
13. Angles in the same plane that have a common vertex. ______ is another word for "beside".
14. A line that has one endpoint and extends infinitely to the opposite direction. When naming the figure, the endpoint is always named first.
17. An angle that is measured at exactly 90 degrees. The endpoint can create a perfect square.
18. This has two dimensions. You will find this represented as a shape that looks like a floor or wall.
19. Angles that are measured less than 90 degrees. These range from 89 down to 1 degree(s).

1. A line that ends on both sides. The ends are represented as dots.
3. Angles that are measured greater than 90 degrees. These range anywhere between 91 and 180 degrees.
4. A figure consisting of two noncollinear rays with a common endpoint. The rays are the sides and the common endpoint in the vertex.
5. Two angles that have a sum of 90 degrees. This is seen as a ray coming out of a right angle.
6. A three-dimensional shape with two parallel circular bases. The bases are connected by a curved surface.
7. This has one dimension and extends without end. You can find this as a straight line with two arrowheads.
9. This has no dimension. You will find this represented as a small dot.
10. A three-dimensional shape with no faces, edges, or vertices. This shape is basically a ball.
12. A five-sided shape with no openings. These are usually seen as looking like houses.
15. A figure in a plane that is a closed figure. Each side of this intersects exactly two other sides, but only at their endpoints.
16. A polyhedron with two parallel and congruent faces. Its bases are connected by parallelogram faces.