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Jul 12, 2024 · To calculate the radius of a circle by using the circumference, take the circumference of the circle and divide it by 2 times π. For a circle with a circumference of 15, you would divide 15 by 2 times 3.14 and round the decimal point to your answer of approximately 2.39.
Jul 17, 2024 · There are three circle radius formulas, depending on what number you know: The radius of a circle from the area: if you know the area A, the radius is r = √(A / π). The radius of a circle from circumference: if you know the circumference c, the radius is r = c / (2 × π).
Radius formula of a circle is given here in terms of diameter, circumference and the area of a circle. Learn how to find the radius if the area, circumference or diameter of the circle is given.
Aug 3, 2023 · How to Find the Radius of a Circle from the Area. When the area of the circle is known, the equation to get the radius is derived below. As we know, Area (A) = πr 2, here r = radius, and π = 3.141 = 22/7. r 2 = A/π. r = √A/π. Let us solve an example to illustrate the concept better.
Learn how to find the radius of a circle using the formulas based on diameter, circumference, and area. See examples, diagrams, and equations of circles and spheres.
Jan 16, 2023 · Define radius and learn how to find the radius of a circle using the radius of a circle formula. Calculate the radius using diameter, circumference, and area.
Learn how to find the radius of a circle using diameter, circumference, or area. See solved problems, equation of a circle, and FAQs on radius of a circle.
