Class 10 Exam > Class 10 Videos > 03 - Surface Area of A Sphere - Class 10 - Maths
03 - Surface Area of A Sphere - Class 10 - Maths Video Lecture
FAQs on 03 - Surface Area of A Sphere - Class 10 - Maths Video Lecture
| 1. What is the formula for finding the surface area of a sphere? |  |
Ans. The formula for finding the surface area of a sphere is 4πr^2, where r is the radius of the sphere.
| 2. How do you calculate the surface area of a sphere if only the diameter is given? | |
Ans. If only the diameter is given, you can calculate the radius by dividing the diameter by 2. Then, you can use the formula 4πr^2 to find the surface area of the sphere.
| 3. Can you find the surface area of a hemisphere using the same formula as a sphere? | |
Ans. No, the surface area formula for a hemisphere is different from that of a sphere. The formula for finding the surface area of a hemisphere is 2πr^2, where r is the radius of the hemisphere.
| 4. How can the surface area of a sphere be useful in real life? | |
Ans. The surface area of a sphere is useful in various real-life applications, such as determining the amount of paint needed to cover a spherical object, calculating the heat transfer in a spherical container, or designing the surface area of a sports ball.
| 5. Is the surface area of a sphere the same as its volume? | |
Ans. No, the surface area and volume of a sphere are different measurements. The surface area refers to the total area covered by the sphere's surface, while the volume represents the amount of space enclosed by the sphere. The formula for finding the volume of a sphere is (4/3)πr^3.
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Nov 23, 2024 Last updated |
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