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Surface Area of Cylinder Video Lecture - CTET & State TET

FAQs on Surface Area of Cylinder Video Lecture - CTET & State TET

1. What is the formula to calculate the surface area of a cylinder?

Ans. The formula to calculate the surface area of a cylinder is 2πr(r+h), where r represents the radius of the base and h represents the height of the cylinder.

2. How can I calculate the total surface area of a cylinder if only the diameter is given?

Ans. If you only have the diameter of the cylinder, you can calculate the radius by dividing the diameter by 2. Once you have the radius, you can use the formula 2πr(r+h) to calculate the total surface area.

3. Is the surface area of a cylinder the same as its lateral surface area?

Ans. No, the surface area of a cylinder includes both the lateral surface area (the curved surface) and the area of the two bases. The lateral surface area only refers to the curved surface of the cylinder.

4. Can the surface area of a cylinder be negative?

Ans. No, the surface area of a cylinder cannot be negative. Surface area is a measure of the total area covered by the surface of an object and cannot have a negative value.

5. How is the surface area of a cylinder related to its volume?

Ans. The surface area of a cylinder does not directly determine its volume. The volume of a cylinder is calculated using the formula πr²h, where r is the radius of the base and h is the height of the cylinder. The surface area, on the other hand, represents the total area covered by the surface of the cylinder, including both the curved surface and the bases.

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