3D Shapes
3D Shapes: Overview
This topic covers concepts, such as, Three Dimensional Shapes, Cubes, Views of a Solid Shape: Front View & Views of a Solid Shape: Side View etc.
Important Questions on 3D Shapes

What is the lateral surface area of a regular octahedron with sides cm ?

Total number of edges an equilateral triangular prism have.

Complete the following table by filling the correct numbers in the boxes.
Shape | Number of faces | Number of plane faces | Number of curved faces | Number of edges | Number of vertices |
Cuboid |

Let's find cuboid objects and note them down.

The shape of the things like a box of sandesh is Cuboid. And the name of an object like a ball is a sphere.
On the way home, I see shapes similar to the cuboid a tiffin box, a _____ and a _____ in a toy-shop.

The shape of the things like a box of sandesh is Cuboid. And the names of an object like a ball is a sphere.
While coming back home, we buy a cake, a packet of butter and bread from a shop. The shapes of these are like _____.

The shape of the things like a box of sandesh is Cuboid. And the name of an object like a ball is a sphere.
But the shapes of the box of sandesh and the _____ are like a _____ (cuboid/sphere).




How does a brick look from the top view?

Make a paper cube and answer the following.
How many edges does a cube have?





Complete the following figures to make cubes or cuboids:

Trace the following nets on the cardboard. Cut out along the boundary lines and then fold along the dotted lines to make a cube or a cuboid.

How many curved faces does a cylinder have?_____.
