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The perimeter of a circle is the circumference.

If you mean the circle is drawn around (and touches the 4 corners of) a square, and you know the perimeter of the square, you divide the square's perimeter by 4, do pythagorean's theorem on the 2 sides (legs) to find the hypotenuse, and that hypotenuse will be the diameter of the circle. You then multiply that diameter you get by pi to get the circumference.

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Q: How do you find the circumference of a circle if only the perimeter is given?

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When the shape is a circle, then the perimeter is called"circumference".The circumference IS the perimeter of a circle.

The circumference of a circle is the length of the circle's perimeter.

perimeter = circumference

Circumference ("perimeter") of a circle = (pi) x (diameter of the circle)

The equivalent of a "perimeter" in a circle is actually called its circumference. To get the diameter, just divide the circumference by pi.

The circumference of a circle is 11\piπ ft. Find its radius, in feet./The circumference of a circle is 11\piπ ft. The Answer Should Be 5.5

-- Find the circumference of a full circle with a diameter of 12 mm.-- The perimeter of the semi-circle is(1/2 the circumference of the full circle) + (the diameter).

The perimeter or circumference of a circle = diameter times pi

Its perimeter is half of its circumference plus its diameter

The Perimeter of a circle is it's circumference. And the circumference is the diameter times pi. So to find the area, divide the circumference by pi, and get the diameter. Then divide the diameter by 2, to get the radius. Then multiply the radius times itself, and multiply that by pi.

Diameter of a circle = circumference/pi

Since pi is the ratio of a circle's circumference to its diameter, multiply the diameter by pi (about 3.14159) to get the circumference.

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