Geometry

3. a geometric transformation that involves rotating a figure a certain number of degrees about a fixed point.
5. a geometrical object that is a three-dimensional analogue to a two-dimensional circle.
7. a quadrilateral with all equal sides.
9. a straight line joining two opposite corners of a square, rectangle, or other straight-sided shape.
10. a two-dimensional closed shape with 4 equal sides and 4 vertices.
11. a line segment joining a vertex to the midpoint of the opposite side, thus bisecting that side.
13. a polyhedron formed by connecting a polygonal base and a point, called the apex.
14. a three-dimensional geometric shape that tapers smoothly from a flat base to a point called the apex or vertex.

1. a three-dimensional solid, one of the most basic of curvilinear geometric shapes.
2. a quadrilateral whose four sides can be grouped into two pairs of equal-length sides that are adjacent to each other.
4. a flat closed shape having 4 straight sides, with one pair of parallel sides.
6. a special type of quadrilateral that has both pairs of opposite sides parallel and equal.
7. a closed 2-D shape, having 4 sides, 4 corners, and 4 right angles (90°)
8. a polyhedron comprising an n-sided polygon base, a second base which is a translated copy of the first, and n other faces, necessarily all parallelograms, joining corresponding sides of the two bases.
12. a line that passes through two very specific points on a triangle