Grade 4 - Progress in Mathematics

Solid Figures and Polygons

11-5

Each flat surface of a solid figure is a plane figure.

triangular

prism

net of a triangular

prism

The net shows that a triangular prism is made up

of 5 polygons: 2 triangles and 3 rectangles. The

dashed lines show where to fold the net.

If you could cut a solid figure, the new flat

surfaces you create would be plane figures.

2 circles 2 rectangles

Name the shape of each shaded flat surface.

1.

A net is a flat

pattern that

folds into a

solid figure.

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