en.wikipedia.org/wiki/Circumference

The circumference of a closed curve or circular object is the linear distance
around its edge. The circumference of a ...

www.mathplanet.com/education/pre-algebra/more-about-equation-and-inequalities/calculating-the-circumference-of-a-circle

The distance around a rectangle or a square is as you might remember called the
perimeter. The distance around a circle on the other hand is called the ...

www.mathgoodies.com/lessons/vol2/circumference.html

The distance around a circle is called the circumference. The distance across a
circle through the center is called the diameter. Pi is the ratio of the ...

www.virtualnerd.com/pre-algebra/perimeter-area-volume/circles/circumference/circle-circumference-from-radius

circle; find circumference; radius; pi; multiply; solve for circumference. Pre-
Algebra ... The circumference of a circle is the distance around that circle. But
what is ...

www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter/area-circumference-circle/v/circumference-from-area

Learn how to find the circumference, the distance around a circle, when given the
area.

www.reference.com/math/perimeter-circle-6328a789a786a595

A: The circumference of a circle is the distance around the outskirts of the circle.
Knowing the radius of any circle allows one to calculate its circumferenc.

www.coolmath.com/reference/circles-geometry

(the perimeter of a circle):. circle graphic. The circumference of a circle is the
perimeter -- the distance around the outer ...

www.eduplace.com/parents/resources/homework/pdf/geometry.pdf

Definitions: perimeter: the distance around a figure circumference: the distance
around a circle area: the number of square units in a region. ∏ (pi): the ratio of ...

www.aaamath.com/geo612x4.htm

The circumference of a circle is the distance around the outside of the circle. ...
The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the ...

www.bbc.co.uk/schools/gcsebitesize/maths/geometry/circlesrev2.shtml

The circumference is the length of the edge around a circle. For any circle ... So
we can write the formula for the circumference of a circle as: C = πd. However ...