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3 days ago · The radius of a circle is the distance from the center of the circle to any point on its circumference. \(_\square\) The diameter of a circle is the length of a line that starts at one point on the circle, passes through the center and ends on another point on the circle's opposite side.
2 days ago · Radius: A line segment between any point on the circumference of a circle and its center. Diameter: Two times the radius of a circle. Area: The interior surface of a circle, given by \( A = \pi r^2 \)
2 days ago · The circumference of a circle with radius r is 2πr. The area of a circle with radius r is πr 2. The area of an ellipse with semi-major axis a and semi-minor axis b is πab. The volume of a sphere with radius r is 4 / 3 πr 3. The surface area of a sphere with radius r is 4πr 2.
The line segment from the center to a point on the circumference is called a radius. It is common to denote the length of the radius as 𝑟. To begin with, let us consider how points can be positioned with regard to a circle. Consider the diagram below.
4 days ago · In this Formula, the diameter equals twice of radius of a circle. Now place the value of the given parameter in this Formula and simplify it to get the diameter of a circle. For example, the radius of a circle is 10cm; we multiply the radius by 2 to get the diameter. The radius of a Circle = 10 cm. Diameter of a Circle = 2 Radius. D = 2 10 = 20 cm
5 days ago · This constant distance is called radius of circle. Hence radius is nothing but the distance of any point on the circle from center. Now the circumference of the circle is the perimeter of the circle.
5 days ago · All points located on the surface of a sphere are at an equal distance from the center. This distance is called the radius, which is usually denoted by 𝑟. An interesting property of a sphere is that among all three-dimensional shapes with the same volume, it is the one with the minimum surface area.
