Unit #1 Vocabulary 1.2

Part #2

1. Polygon - A closed, two-dimensional shape with straight sides that do not cross ea ch other.

2. Edge - Each straight side of a polygon

3. Face - Each flat side of a polyhedron.

4. surface area - The number of square units that covers all the faces of the polyhedron, without any gaps or overlaps.

5. base (of a prism or pyramid) - can also refer to a face of a polyhedron

6. Net - A two-dimensional figure that can be folded to make a polyhedron.

7. Polyhedron - A closed, three-dimensional shape with flat sides.

8. Prism - A type of polyhedron that has two bases that are identical copies of each other. The bases are connected by rectangles or parallelograms.

9. Pyramid - A type of polyhedron that has one base. All the other faces are triangles, and they all meet at a single vertex.

10. Cubed - means “to the third power.”

11. Exponent - They tell you how many factors to multiply.

12. Squared - “to the second power.”