CBSE Class 8CBSE
Share
Notifications

View all notifications

Surface Area and Volume of Cube, Cuboid and Cylinder - Concept of Cube

Login
Create free account


      Forgot password?

notes

A cube is a 3d representation of a square and has all equal sides. The length, breadth, and height in a cube are the same and are termed as sides (s). If s is each edge of the cube then, 
the surface area of a cube=2 [(s × s) + (s × s) + (s × s)] = 2(3 `s^2` ) = 6 `s^2`.

Lateral Surface Area of Cube :
The area of 4 constituting squares gives us the lateral surface area of the cube. 
So the lateral surface area of the cube shall be `s^2`+`s^2`+`s^2`+`s^2` = 4 `s^2`. 
The lateral surface area of a cube = 4 `s^2`

S
View in app×