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using the formula circumference=diameter X pi:

circumference=diameter X pi

circumference/pi=diamter X pi/pi

circumference/pi=diameter

therefore,

diameter=circumference/pi

diameter=12mm/3.14

diameter=3.821mm

Q: What is the diameter of a 12cm circle?

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the diameter of a circle is double the radius so if the radius is 12 cm then the diameter is 24 cm

Circumference = pi x diameter. So the circumference of a circle with diameter 12 cm = pi x 12 = 37.7 cm (1 decimal place.)

The radius is half of the diameter of a circle.

Diameter of a circle = circumference/pi

The radius of a circle is half of its diameter

Related questions

The circumference of a circle if the diameter is 12cm is 37.7cm

12pi cm

12 cm A diameter is twice as long as the radius of a circle. D = 2r D = 2(6cm) = 12cm

the diameter of a circle is double the radius so if the radius is 12 cm then the diameter is 24 cm

Using 3.14 as Pi the area of circle is: 113.03999999999999

The diameter of circle A is 12cm so its radius must be 6cm.

perimeter of a circle = circumference = pi x diameter perimeter = 3.1416 x 12 = 37.7 cm

circumference = π x diameter ⇒ diameter = circumference ÷ π = 12 cm ÷ π ~= 3.8 cm

Circumference = pi x diameter. So the circumference of a circle with diameter 12 cm = pi x 12 = 37.7 cm (1 decimal place.)

C = d x pi 37.68 / 3.14 = d your diameter is 12cm

The radius of a circle is the distance from the centre to the edge. The diameter is the distance right across the circle through the centre. So the diameter of a circle is always twice its radius. So if the radius of a circular CD is 6cm, the diameter is twice this - 12cm.

Circumference: 12*pi = 37.699 cm rounded to three decimal places