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Circumference. Believe it or not, that percentage is 78.5% again. 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. 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. So we have (2)(π)(2) which is equal to 4π 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. Anonymous. The area is measured in units units such as square centimeters \$(cm^2)\$, square meters \$(m^2)\$, square kilometers \$(km^2)\$ etc. The circumference (C) of a circle is its perimeter, or the distance around it. Diameter = Circumferece / ? Radius = Diameter / 2 = 6 / 2 = 3. 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 ] This online diameter to circumference converter helps you to find the perimeter value from the given diameter at desired units. So the circumference is 14π units. In geometry, the circumference (from Latin circumferens, meaning "carrying around") is the perimeter of a circle or ellipse. The area (A) of a circle is how much space the circle takes up or the region enclosed by the circle. Volumes are measured in cubic units like cm³, feet³ etc well if the formula for area is π*r^2 . Area of a circle is defined as π r2 and the diameter as 2r. circumference = 2 * pi * radius. The circumference of the circle -- the line around the outside of the circle -- can be calculated in the same way. Conclusion : The unit of the circumference is the same as the unit of. Length width distance breadth height perimeter circumference is measured plain units like cm, feet etc. Given any one variable A, C, r or d of a circle you can calculate the other three unknowns. Use this circle calculator to find the area, circumference, radius or diameter of a circle. Hope that helps :) 0 0? The diameter of a circle is the straight line passing through the center 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. It is also called as the longest chord of the circle. Areas are measure in square units like cm², feet² etc. If radius is in centimeters, as (2 * pi) is a number without . 6 years ago. Area = Pi x 3^2 = 9Pi square units. what is the circumference of a circle if the area is 1384.74 units squared? any specific unit, the circumference is in centimeters too. More generally, the perimeter is the curve length around any closed figure. 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. √ = square root Calculator Use. ***** Circumference or perimeter of a circle is defined as the distance around it. Diameter = Circumference / Pi = 6Pi / Pi = 6. the radius. 10 years ago. 4 Answers. Area of a circle = π r². Units: Note that units of length are shown for … Answer Save. Guest Aug 17, 2017 #2 +178 +1 . Both area and perimeter can be calculated with simple formulas using … Notice that here, the radius of our circle is 2 units. Plugin the value and you can solve problem c. As for problem d, circumference is 2πr, … So we can plug in 2 for r in the formula. Relevance. ... the formula is pi x radius squared (?r²) yet with the intention to try this, you should first locate the diameter. 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