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Q: What is the perimeter of a circle with a diameter of 8?

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A circle with an 8-inch diameter has a perimeter of 25.1 inches.

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

The perimeter of a circle is called its circumference. The formula for calculating the circumference is: C = πd (pi x diameter).In this case, this would be 8 in. x 3.14... or about 25.13 inches.

The perimeter or circumference of a circle = diameter times pi

Circumference (perimeter) of a circle = pi x diameter Diameter of a circle is the straight line distance from one side to the other which passes through the centre of the circle.

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

Perimeter of a semicircle is the length of the half-circle plus the diameter. The whole circle would have a length of diameter times pi, but since it's only half... Perimeter of semicircle = (1/2*pi*D) + D

The perimeter of a full circle (circumference) is "pi" times the diameter. So the perimeter of a semi-circle will be half that; Perimeter = (pi/2) x (diameter).

-- 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 is the diameter times pi. So the perimeter is 20pi ft

Multiply the diameter by pi.

The perimeter of a circle is its circumference and it is: 2*pi*radius or pi*diameter

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