3D shapes: name from diagram
for 3rd grade

Identify 3-dimensional shapes from diagrams

This topic helps you learn the names of many 3D shapes. The shapes in the topic are described below

1. Sphere: A sphere is a round shape that looks like a ball. It is completely symmetrical, which means that every part of it looks the same. Examples of spheres include a tennis ball or the Earth (nearly).
2. Cylinder: A cylinder is a shape that is shaped like a tin can. It has two flat, circular faces (called bases) that are the same size, and a curved body that connects the two bases. Examples of cylinders include a can of soup or a paper towel roll.
3. Cone: A cone is a shape that looks like an ice cream cone or a party hat. It has a round base that connects to a point at the top. The sides of the cone slant inwards as they go up. Examples of cones include a traffic cone or a party hat.
4. Triangular Prism: A triangular prism is a shape that has two triangular faces and three rectangular faces. It looks like a triangle that has been stretched out. Examples of triangular prisms include the Toblerone chocolate bar or the old type of tent.
5. Square based pyramid: A square based pyramid is like the Great Pyramid of Giza or a pyramid-shaped cake. It has a square base and four triangular faces that meet at a point (called the apex) at the top.
6. Cube: A cube is like a Rubik's Cube or a six-sided dice. It has six square faces that are the same size. The edges where the faces meet are also all the same length.
7. Cuboid: A cuboid is like a cereal box or a brick. It has six rectangular faces like a cube but unlike the cube, the faces can be different sizes.

This topic shows you diagrams of different 3D shapes and you have to name them correctly. You may have noticed that the cube is a special type of cuboid where all the faces are the same sized square. This is true for a few of the shapes in this toic. You should always go with the most specific name, so if it is a cube go with cube even though cuboid is also technically correct.