how can we represent three-dimensional figures in only two dimensions?

How can we represent three-dimensional figures in only

two dimensions?

In this lesson you will learn how to represent three-dimensional figures with nets by analyzing their

faces and bases.

Let’s ReviewLet’s ReviewOne-Dimensional

line

linesegment

rayrectangle

Two-Dimensional

triangleall polygons

Let’s ReviewLet’s Review

A three-dimensional figure has a length, a width, and a height.

Let’s ReviewCore Lesson

A net is a two-dimensional pattern of a three-dimensional figure, that can be

folded to form the figure.

Let’s ReviewCore Lesson

Identify the net that we could fold in order to create this 3D figure.

Let’s ReviewCore Lesson

Let’s ReviewCore Lesson

Let’s ReviewCore Lesson

Match the 3D figure to the right with its appropriate net, below.

A B C

2 triangle bases, 3 rectangle faces

4 triangle faces, 1 rectangle base

2 triangle bases, 3 rectangle faces

2 triangle bases, 4 rectangle faces

Let’s ReviewCore Lesson

Match the 3D figure to the right with its appropriate net.

A B C

In this lesson you have learned how to represent three-

dimensional figures with nets, by analyzing their faces and

bases.

Let’s ReviewGuided PracticeDraw a net for this rectangular prism.

Faces?• 6 faces• 4 rectangles• 2 squares

Let’s ReviewExtension Activities

Kennedy’s teacher asked her to draw the net of a rectangular prism. She drew the image, below. Explain to Kennedy what she did incorrectly.

Let’s ReviewExtension Activities

A dodecahedron is a 3D solid with 12 flat faces. Can you draw the net for this dodecahedron?

Let’s ReviewQuick Quiz

Draw a net for a cube.

Draw a net for this square pyramid.