Able to make the shapes of cubes, cylinders and cones using nets especially designed for this purpose.

__Able to make the shapes of cubes, cylinders and cones using nets
especially designed for this purpose.__

** **

__Nets of cuboid:__

Open out a match box and layout on the
white paper. Draw the base sides of the match box.

**Teacher:**
Do you see, “How many sides are there
in a match box?”

**Student:**
yes sir. There are 6 sides.

**Teacher**:
You are right. Can you assemble/create
it after dissemble?

**Student:**
Yes sir.

**Teacher:** Good

The net is a two dimensional shape and
it always forms three-dimensional shape.

A net is a two dimensional figure
which can be folded to form a three dimensional figure.

**Try these**

Find out which of these
can be made into a box by folding along the dotted lines. Put a tick mark for
the correct option.

__Net of a cube:__

Fold squares along the dotted lines.
Hence six equal squares from the net of a cube.

** **

__Net of a cylinder:__

Consider a rectangle and two equal
circles. This net thus formed is a cylinder.

Join the two edges of a rectangle
breadth wise in such a way that the length of the rectangle forms the boundary
of one circle at the top and other circle at the bottom.

**The length of the
rectangle forms the boundary of the circle.** **Both of them are equal
in length.**

__Net of a cone:__

Look at the figure.

Join both the portion of a circle in
such way that the arc of the circle falls on the boundary of the circle
attached at the bottom.

**The length of the arc
forms the boundary of the circle. Both of them are equal in length**

** **

**Activity**

Match the net with the
shape you will get by folding.

Tags : Geometry | Term 1 Chapter 1 | 5th Maths , 5th Maths : Term 1 Unit 1 : Geometry

Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail

5th Maths : Term 1 Unit 1 : Geometry : make the shapes of cubes, cylinders and cones using nets | Geometry | Term 1 Chapter 1 | 5th Maths

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