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Geometry - PowerPoint PPT Presentation


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Geometry. Constructing 3D shapes. Geometry. How do we make a box 6cm long x 4cm high x 3cm wide?. Geometry. We know the net of the box can be in the shape of a cross. b ut what are the dimensions of each rectangle?. Geometry. Start with the base length of 6cm and width of 4cm. 4cm.

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Geometry


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geometry

Geometry

Constructing 3D shapes

geometry1

Geometry

How do we make a box 6cm long x 4cm high x 3cm wide?

geometry2

Geometry

We know the net of the box can be in the shape of a cross

but what are the dimensions of each rectangle?

geometry3

Geometry

Start with the base length of 6cm and width of 4cm

4cm

6cm

geometry4

Geometry

Each of the 4 sides will be 3cm tall

3cm

geometry5

Geometry

The lid is added which is the same dimension as the base

geometry6

Geometry

Finally add glue tabs 1cm wide

geometry7

Geometry

Your task is to make:

A cube 5cm3

A cuboid 6cm x 4cm x 3cm

A square based pyramid 6cmx 6cm, each triangle 7cm high