Surface Area of a Cube
Surface Area of a Cube
Surface Area of Cube: All the six faces of a cube are squares of the same size. i.e. for a cube we have l=b=h. Thus, if l cm is the length of the edge or a cube, then to calculate the total Surface Area of Cube we have to add the sum of area of all the faces of a cube.
Example:- Find the surface area of cube whose edge is 11cm.
Solution:- We know that the surface area of a cube=
Here, edge=11cm
Surface area of the given cube=
Example: Find the edge of a cube whose surface area is 1350 sq cm
Solution: Let the edge = x cm
Surface area of Cube is = 1350 sq cm
x= 15 cm
Example: A cubical box is to be painted on all the side.Find the cost of painting when the rate of painting 1sq cm. is Rs.5. The side of the cube is 16 cm
Solution: Side of a cube = 16 cm
Surface area of the cube =
A solid figure with 6 square surface is __________________ | |||
| Right Option : D | |||
| View Explanation | |||
The edge of a cube is 6 cm. Find its total surface area . | |||
| Right Option : A | |||
| View Explanation | |||
The total surface area of a cube of side 1.1 m is ___________________ | |||
| Right Option : B | |||
| View Explanation | |||
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