# Three Dimensional Shapes

Class:2

Subject:Mathematics

Topic-Three dimensional shapes

Content:Identify object in our environment that are three dimensional shapes

Examples of cubes

Examples of cuboids

Identify the flat faces,edges and vertices(corners)of cubes and cuboids

Features of cubes and cuboids

Three dimensional shapes are cubes,cuboids,cylinders and spheres

Examples of cubes are cubes of sugar,cubes of maggi and ludo dice

Examples of cuboids are mathematical set,toothpaste box,match box,e.t.c

The edges of a cube or cuboids is where the flat faces meet.The vertices is where the edge of cubes and cuboids meets.

Features of cubes and cuboids

Cube

It has 6 flat faces

It has 12 edges

It has a vertices(corners)

It has a square face

Cuboids

It has 6 flat faces

It has 12 edges

It has 8 vertices

It has a rectangular face

Example

Take a cube of sugar and matchbox

Count the number of flat faces both objects have?

How many flat faces do the objects have?

The cube of sugar and matchbox both have 6 flat faces.

Count the number of edges of cube of sugar and match box

How many edges do the objects have?

The cube of sugar and matchbox both have 12 edges

Count the number of vertices the cube of sugar and matchbox

How many vertices do the objects have?

The cube of sugar and matchbox both have 8 vertices

Evaluation Questions

Copy and complete each of the following statement

1.A cube and cuboid each have

a) ___________________faces

b) ___________________edge

c) ___________________vertices

2.Each face of cube is __________________

3.Each face of cuboid is ___________________

4.List two objects in your environment that are cubes

___________and____________

5.Name two objects in your environment that are cuboids

___________and____________

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