1-1: Nets and Drawings

Visualizing Geometry

Nets vs. Solids

Geogebra Nets

Cube, Rectangular Prism, Cylinder, Cone, Octahedron

Net – a 2D diagram that shows all the surfaces of a 3D figure

3D cylinder

Net of cylinder

Isometric Drawings

Isometric Drawing – a drawing that shows a corner view of a three-dimensional figure.

Slanted lines represent depth

Isometric Dot Paper can be used to draw solids

Isometric Drawings

Example 1:

Isometric Drawings

Example 2:

Drawing Nets

Draw a net for the following figure.

3 in.

10 in.

4 in.

Take Home Message

3D shapes can be view as 2D shapes

Nets will help us solve for surface area

Geometry is all around us