Both area and perimeter can be calculated with simple formulas using … 6 years ago. Diameter = Circumference / Pi = 6Pi / Pi = 6. A circle is the set of all points in a plane that are a fixed distance, called the radius, from a fixed point, called the center. Hope that helps :) 0 0? So the circumference is 14π units. If radius is in centimeters, as (2 * pi) is a number without . Guest Aug 17, 2017 #2 +178 +1 . Answer Save. 10 years ago. Area of a circle is defined as π r2 and the diameter as 2r. Believe it or not, that percentage is 78.5% again. Use this circle calculator to find the area, circumference, radius or diameter of a circle. More generally, the perimeter is the curve length around any closed figure. Anonymous. The area (A) of a circle is how much space the circle takes up or the region enclosed by the circle. Circumference. any specific unit, the circumference is in centimeters too. Volumes are measured in cubic units like cm³, feet³ etc So we have (2)(π)(2) which is equal to 4π units. The circumference (C) of a circle is its perimeter, or the distance around it. Circumference of (the same) circle = 2 π r. given the area, solve for r...then calculate the circumference [your teacher has given you an 'approximation' for π ] Answer: 12.56 units Step-by-step explanation: To find the circumference of a circle, start with the formula for the circumference of a circle which is shown below. Circumference or perimeter of a circle is defined as the distance around it. Relevance. It is also called as the longest chord of the circle. Circumference may also refer to the circle itself, that is, … To calculate the area, you just need to enter a positive numeric value in one of the 3 fields of the calculator. Diameter = Circumferece / ? 3.94476 × 10 5 square inches (in²) Use the this circle area calculator below to find the area of a circle given its circumference, or other parameters. Area of a circle = π r². This online diameter to circumference converter helps you to find the perimeter value from the given diameter at desired units. The circumference of the circle is just a percentage of the circumference (perimeter) of the square, and it's the same percentage no matter what the size. So we can plug in 2 for r in the formula. the radius. ***** Conclusion : The unit of the circumference is the same as the unit of. Notice that here, the radius of our circle is 2 units. circumference = 2 * pi * radius. √ = square root Calculator Use. Units: Note that units of length are shown for … The circumference of the circle -- the line around the outside of the circle -- can be calculated in the same way. In geometry, the circumference (from Latin circumferens, meaning "carrying around") is the perimeter of a circle or ellipse. 4 Answers. Radius = Diameter / 2 = 6 / 2 = 3. Areas are measure in square units like cm², feet² etc. what is the circumference of a circle if the area is 1384.74 units squared? Area = Pi x 3^2 = 9Pi square units. The diameter of a circle is the straight line passing through the center of the circle. The area is measured in units units such as square centimeters $(cm^2)$, square meters $(m^2)$, square kilometers $(km^2)$ etc. Given any one variable A, C, r or d of a circle you can calculate the other three unknowns. That is, the circumference would be the arc length of the circle, as if it were opened up and straightened out to a line segment. Plugin the value and you can solve problem c. 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