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 =
If each side of a cube is 'a' then its total surface area is _________________ | |||
| Right Option : B | |||
| View Explanation | |||
If the lateral surface area of a cube is 64 cm sq, its total surface area is equal to : | |||
| Right Option : C | |||
| View Explanation | |||
A solid figure with 6 square surface is __________________ | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [20]
The experience was nice. I studied here for three years and saw a tremendous change in myself. I started liking subjects like English and SST which earlier I ran from. Extra knowledge gave me confidence to overcome competitive exams. One of the best institutes for secondary education.
Aman Kumar Shrivastava
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Om Umang
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