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Q: Circumfertence of a circle that has a raduis of 7 centimeters is approximately the same as the perimeter of a square about how long is one side of the square?

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The side of the square is equal to the diameter of the circle, in this case 2a so the perimeter is 8a cm.

The perimeter of a full circle is 2*pi*r. Where, pi is the mathematical constant that is the ratio of any circle's circumference to its diameter, approximately equal to 3.14, and r is the radius of the circle. The perimeter of a semi circle, assumed to be half of a full circle is pi*r where pi and r are previously defined.

The circumference of a circle is pi times the diameter. If you want a third of that, divide by 3. (Pi is approximately 3.14) Then to get the perimeter add the diameter to the circumference of the 1/3 of the circle.

The answer depends on what characteristic of a half circle you want to calculate: its area or perimeter or something else.

name for the perimeter of a circle?

The perimeter of a circle is its circumference

No because the perimeter of a circle is its circumference

The perimeter of a circle would be the circumference.

The measure around a circle is called a circumference, rather than a perimeter. The term "perimeter" is used for polygons. The circumference of a circle is equal to the diameter, multiplied by pi - or to the radius, multiplied by 2 x pi. The number pi - which can be defined precisely as the ratio between the circumference and the diameter of a circle - is approximately 3.1416.

Pi (3.1415...) times the diameter of the circle = the perimeter

The perimeter of a circle is its circumference

Since Pi is equal to the circumference over diameter, the diameter of a circle is equal to its circumference over Pi. So divide 24 centimeters by 3.14159 to get approximately 7.63943 centimeters.

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