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Quick Revision: Surface Area & Volumes Video Lecture | Mathematics (Maths) Class 9

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FAQs on Quick Revision: Surface Area & Volumes Video Lecture - Mathematics (Maths) Class 9

1. How do you calculate the surface area of a cube?
Ans. To calculate the surface area of a cube, you can use the formula: 6 x (side length)^2, where the side length represents the length of one side of the cube.
2. What is the formula for finding the volume of a cylinder?
Ans. The formula for finding the volume of a cylinder is π x (radius)^2 x height, where the radius is the distance from the center of the circular base to the edge, and the height is the distance between the two circular bases.
3. How can you find the surface area of a sphere?
Ans. The formula for finding the surface area of a sphere is 4 x π x (radius)^2, where the radius represents the distance from the center of the sphere to any point on its surface.
4. What is the formula for calculating the volume of a cone?
Ans. The formula for calculating the volume of a cone is 1/3 x π x (radius)^2 x height, where the radius is the distance from the center of the circular base to the edge, and the height is the distance from the base to the apex (top) of the cone.
5. How do you determine the surface area of a rectangular prism?
Ans. To determine the surface area of a rectangular prism, you can use the formula: 2 x (length x width + width x height + height x length), where the length, width, and height represent the dimensions of the prism.
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