This document discusses 3D shapes, including their key characteristics of having three dimensions of height, width, and length. It describes the main parts of 3D shapes as prisms, which have two equal polygon bases and parallelogram faces, and pyramids, which have one polygon base and triangular faces meeting at a common vertex. The document also mentions other types of 3D shapes like polyhedrons with regular polygon faces and curved 3D shapes, and how nets can be used to form 3D shapes by folding and gluing.

1. Unit 4
3D Shapes
by MariaAdrover
CEIPCALONGE.

2. Remember!
REGULAR PLANE FIGURES = 2D SHAPES

3. 3D SHAPES

4. 3D SHAPE characteristics
These shapes are solid.
They have three dimensions (height, width and length).
You can find 3D shapes all around in real life!

5. PARTS OF A 3D SHAPE
Geometry_4th
_Unit 5_3D Shapes

6. PRISM
A prism has got two equal bases. They are regular
polygons.
The faces are parallelograms.

7. PYRAMID
A pyramid has got one base. This is a regular polygon.
The faces are flat triangles. They meet in a common
vertex.

8. Types of Prisms and Pyramids
The name of the prims and pyramids depends on the
base's shape:

9. THE POLYHEDRONS
A polyhedron have got all the faces the same. They are
regular polygons

10. CURVED 3D SHAPES
They have curved surfaces.

11. 3D Shapes Nets
If you fold and glue a net, you build a 3D Shape.