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5 天前 · Volume of a sphere formula. A sphere is a perfectly round geometrical 3D object. The formula for its volume equals: volume = (4/3) × π × r³. Usually, you don't know the radius — but you can measure the circumference of the sphere instead, e.g., using the string or rope.
2024年5月8日 · To calculate the volume of a sphere, use the formula v = ⁴⁄₃πr³, where r is the radius of the sphere. If you don't have the radius, you can find it by dividing the diameter by 2. Once you have the radius, plug it into the formula and solve to find the volume.
The volume of sphere is the amount of space occupied, within the sphere. The sphere is defined as the three-dimensional round solid figure in which every point on its surface is equidistant from its centre. The fixed distance is called the radius of the sphere and the fixed point is called the centre of the sphere.
The formula for the volume of a sphere can be derived using the formula for the surface area of a sphere, which is 4πr 2, using a method that approximates the surface area of a sphere using square pyramids. Let the inside of a sphere of radius r be composed of n square pyramids, each with a height of r and a base with an area of A.
The volume of a sphere is 4/3 x π x (diameter / 2)3, where (diameter / 2) is the radius of the sphere (d = 2 x r), so another way to write it is 4/3 x π x radius3. Visual on the figure below:
The space occupied by a solid sphere is called the volume of the sphere. Learn how to deduce its formula and determine the volume of the sphere using examples.
2023年10月4日 · This online calculator will calculate the 3 unknown values of a sphere given any 1 known variable including radius r, surface area A, volume V and circumference C. It will also give the answers for volume, surface area and circumference in terms of PI π.
