🔵 SPHERE | How to Find the Volume and Surface Area ??? 🔵 скачать в хорошем качестве

🔵 SPHERE | How to Find the Volume and Surface Area ??? 🔵

Hello everyone! Today I would like to give you a lesson on the topic Sphere. In this video, you will learn what a sphere is and how it is formed by rotating a semicircle around its diameter. We will clearly define a sphere as a geometric surface consisting of all points that are at the same distance from a fixed point called the center. You will also learn: what the axis of rotation of a sphere is and why it coincides with the diameter, how to calculate the volume of a sphere using the formula V = (4/3)πR³, how to calculate the surface area of a sphere using the formula S = 4πR². Together, we solve several step-by-step problems: finding the volume of a sphere using its diameter or the area of a great circle, finding the surface area of a sphere using different given data, solving an advanced problem involving a plane intersecting a sphere and determining the length of the circular cross-section. This lesson is perfect for students studying solid geometry, stereometry, and exam preparation. All explanations are clear, visual, and beginner-friendly. If something feels difficult — don’t worry. Watch the video again slowly and never give up. Learning mathematics is a journey, and you are doing great! 🚀 🔗 Additional Resources (US Websites) Here are four trusted American educational websites where you can learn more about spheres and solid geometry: Khan Academy – Sphere volume and surface area https://www.khanacademy.org/math/geom... Math Is Fun – Sphere explained simply https://www.mathsisfun.com/geometry/s... Wolfram MathWorld – Sphere (advanced reference) https://mathworld.wolfram.com/Sphere.... Purplemath – Geometry help and explanations https://www.purplemath.com/modules/so...