Geometry

4. A three dimensional shape with a polygon base and triangular sides that connect at a center point above the base.
6. The branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs.
7. A three dimensional shape with a circular base and sides that slant inward to connect at a point above the base.
8. *BONUS* A material prepared in ancient Egypt from the pithy stem of a water plant, used in sheets throughout the ancient Mediterranean world for writing or painting on and also for making rope, sandals, and boats.
9. Type of angle which is less than 90 degrees, but greater than 0 degrees.
11. A two dimensional shape with four sides and four 90 degree angles. Two pairs of sides share equal lengths.
12. A three dimensional shape which has two circular bases connected by parallel sides.
13. A two dimensional shape with four sides of equal length and four 90 degree angles.
15. Two lines that always go in the same direction and remain the same distance apart
16. Type of angle which is exactly 90 degrees.

1. Type of angle which is greater than 90 degrees, but less than 180 degrees.
2. A two dimensional shape with three sides and three angles adding up to 180 degrees.
3. A three dimensional shape with rounded sides. All points on the face are equal distance from the center.
5. Two lines which intersect at a 90 degree angle.
10. A three dimensional shape with six faces. All faces are equal sized squares.
12. A two dimensional shape with a rounded perimeter that is always the same distance from the center point.
14. A two dimensional shape with at least three sides and angles.