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 Review One-Dimensional line segment ray rectangle Two-Dimensional triangle all polygons

Let’s Review A three-dimensional figure has a length, a width, and a height.

Core Lesson A net is a two-dimensional pattern of a three-dimensional figure, that can be folded to form the figure.

Let’s Review Core Lesson Identify the net that we could fold in order to create this 3D figure.

Let’s Review Core Lesson

Let’s Review Core Lesson

Let’s Review Core Lesson Match the 3D figure to the right with its appropriate net, below. ABC 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 Review Core Lesson Match the 3D figure to the right with its appropriate net. AB C

In this lesson you have learned how to represent three-dimensional figures with nets, by analyzing their faces and bases.

Let’s Review Guided Practice Draw a net for this rectangular prism. Faces? 6 faces 4 rectangles 2 squares

Let’s Review Extension 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 Review Extension Activities A dodecahedron is a 3D solid with 12 flat faces. Can you draw the net for this dodecahedron?

Let’s Review Quick Quiz Draw a net for a cube. Draw a net for this square pyramid.