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 =
The edge of a cube is 6 cm. Find its total surface area . | |||
| Right Option : A | |||
| View Explanation | |||
If each edge of a cube is increased by 25%, then the percentage increase in its surface area is _________________ | |||
| Right Option : D | |||
| 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 | |||
Students / Parents Reviews [20]
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
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Eshan Arora
8thWhen I have not joined Abhyas Academy, my skills of solving maths problems were not clear. But, after joining it, my skills have been developed and my concepts of science and SST are very well. I also came to know about other subjects such as vedic maths and reasoning.
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7thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
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Aman Kumar Shrivastava
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9thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
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Aman Kumar Shrivastava
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
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