Nets of Shapes

Shipping containers help distribute materials all over

the world. Items can be shipped by boat, train, or

transport truck to any destination using these

containers. Shipping containers are right rectangular

prisms.

Why do you think this shape is used?

2. I can draw nets
for rectangular and
triangular prisms

and cylinders.

5.2 - Nets of Three Dimensional Objects

Vertices, faces and edges are the three properties that
define any three-dimensional object.

A vertex is a corner - a point where two or more edges
meet.
An edge is the line segment between two faces.
A face is a single flat surface.3-D objects have more
than one face.

Three Dimensional Objects

Draw

Circle the Vertices

Draw

Draw a red line on each edge. and write the # of faces each shape has.

Congruent means
identical in shape

AND size

This a called right rectangular prism

because the rectangular base is

perpendicular to the sides.

Nets and 3D Shapes (3)

Explore the Math

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​https://www.geogebra.org/m/UcFRtKtk

Draw

How do you know if a netcan build a right
rectangular prism? Here are a variety of
possible nets for a right rectangular prism. Which nets form a rectangular prism? (circle them)

Solution
Visualize what the umbrella stand would look like if you could
cut it open and flatten it. The net has one circle and a rectangle.
When the rectangle is curved around the circle, the net will form
a cylinder with an open top. The width of the rectangle is equal
to the circumference of the circle.

A company asks you to create an umbrella stand for large beach
umbrellas.
Draw the net for the umbrella stand.

Net Animations for

Cube, Cylinder and Cone

Example 1:Draw a Net for a 3-D Object

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​https://www.geogebra.org/m/sdFGxeYM

This a called right cylinder because
the circular base is perpendicular to

the rectangular side.

Show you Know

Solution
Trace the net onto paper. Cut along the outside edges and fold along the inside edges. Tape the cut edges together to try to build a right triangular prism .

This a called right
triangular prism

because the

triangular base is

perpendicular to the

rectangular side.

Example 2:Build a 3-D Object from a Given Net

Can this net be folded to form the shape of a tent? (Triangular Prism)

Net Animations for
Right Triangular Prism

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​https://www.geogebra.org/m/aJv7KdWB

Draw

Draw Matching lines between the shape and it's net

Fill in Notes and Do Cut-Outs Activity

Show you Know

Use this net to build a 3-D object.
What object does it make?

Draw a net for the object. Label the
dimensions on your drawing.

5 cm

28 cm

21.5 cm

21.5 cm

5 cm

5 cm

5 cm

21.5 cm

28 cm