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Examples: Volume of Cuboid and Cube Video Lecture - Class 9

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FAQs on Examples: Volume of Cuboid and Cube Video Lecture - Class 9

1. How do I find the volume of a cuboid?
Ans. To find the volume of a cuboid, you need to multiply its length, width, and height. The formula for the volume of a cuboid is V = lwh, where "V" represents volume, "l" represents length, "w" represents width, and "h" represents height.
2. What is the formula to find the volume of a cube?
Ans. The formula to find the volume of a cube is the same as that of a cuboid. Since a cube has all sides equal, you only need to know the length of one side. The formula is V = s^3, where "V" represents volume and "s" represents the length of a side.
3. How can I calculate the volume of a cube if I only know its surface area?
Ans. Unfortunately, you cannot directly calculate the volume of a cube if you only know its surface area. The surface area of a cube is given by the formula A = 6s^2, where "A" represents surface area and "s" represents the length of a side. To find the volume, you need to know the length of a side.
4. Can I use the same formula to find the volume of a rectangular prism as that of a cuboid?
Ans. Yes, you can use the same formula to find the volume of a rectangular prism as that of a cuboid. A rectangular prism is a general term that includes both cubes and cuboids. The formula V = lwh applies to rectangular prisms as well.
5. Is the volume of a cuboid always greater than its surface area?
Ans. No, the volume of a cuboid is not always greater than its surface area. The volume of a cuboid is a measure of its capacity or internal space, while the surface area represents the total area of its outer surfaces. In some cases, the surface area may be greater than the volume, depending on the dimensions of the cuboid.
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