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www.omnicalculator.com/math/circumference

Finally, you can find the diameter - it is simply double the radius: D = 2*R = 2*14 = 28 cm. Use our circumference calculator to find the radius when you only have the circumference or area of a circle. If you wish to calculate the properties of a three-dimensional solid, such as a sphere, cylinder or cone, it's best to use our volume calculator.

circumference-calculator.com

The formula to find the circumference when radius is given is Radius = Circumference/(2*π) The formula to find the area when radius is given is Area of circle = π*Radius*Radius In the above formulas, π=3.14159 and R is the radius. You can read more about circumference in this WikiPedia article - Circumference.

www.wikihow.com/Find-the-Circumference-of-a-Circle-Using-Its-Area

How to Find the Circumference of a Circle Using Its Area. You may need to calculate the circumference of a circle. You can do that by using its area. Use the formula for the area of a circle, π*r^2, or pi times radius r squared = Area ...

sciencing.com/calculate-area-circumference-circle-7274267.html

How to Calculate the Area & Circumference of a Circle ... Calculating either the circumference or area of a circle requires knowing the circle's radius. A circle's radius is the distance from the center of the circle to any point on the edge of the circle. Radius is the same for all points on a circle's edge.

www.wikihow.com/Calculate-the-Circumference-of-a-Circle

To calculate the circumference of a circle, use the formula C = πd, where "C" is the circumference, "d" is the diameter, and π is 3.14. If you have the radius instead of the diameter, multiply it by 2 to get the diameter. You can also use the formula for circumference of a circle using radius, which is C = 2πr.

www.calculatorsoup.com/calculators/geometry-plane/circle.php

Circle Shape. r = radius d = diameter C = circumference A = area π = pi = 3.1415926535898 √ = square root. Calculator Use. Use this circle calculator to find the area, circumference, radius or diameter of a circle. Given any one variable A, C, r or d of a circle you can calculate the other three unknowns.

www.howtozee.com/how-to-calculate-circumference-of-circle

To find out circumference of circle you either know radius or area of the circle. 1st Way to Calculate Circumference of Circle: When You Know Diameter of Circle. How to find circumference of circle: There is a simple formula to finding out circumference of a circle using the diameter. Formula of circumference of a circle (C) = πd, where π is ...

www.squarefootagearea.com/calculator/circumference-calculator

Understanding the Circumference Calculator: To understand how to calculate circumference we must first begin with the definition of circumference. Circumference of a circle is linear distance around outer border of a circle. To find out the circumference, we need to know its diameter which is the length of its widest part.

www.basic-mathematics.com/circumference-calculator.html

Therefore, the circumference depends only on the size of r. That is why you only need to enter r here to get the circumference The calculator will only accept positive value for r since a distance cannot be negative As a reminder, if r = 4 cm for instance, circumference = 2 ×3.14 ×4 = 25.12 cm