# 3D Shapes

### Ashlyn Clar 3period 1-15-14

T**hree-Dimensional Shapes-** or **3D** because there are three dimensions: *width, depth *and *height.*

P**olyhedron-** is a three-dimensional solid figure in which each side is a flat surface.

Non-Polyhedra-*if any surface is not flat.*

Prism- has flat sides and the same **cross section** all along its length.

Pyramid- is made by connecting a **base** to an **apex.**

Cone- is made by rotating a triangle.

Cylinder-a solid geometric figure with straight parallel sides and a circular o section.

Sphere-denoting a structure or region of spherical form, esp. a region around the earth.

Torus-a surface or solid formed by rotating a closed curve, esp. a circle, around a line that lies in the same plane but does not intersect it.

Net-A pattern that you can cut and fold to make a model of a solid shape.