Q: What is radius of 6cm circle?

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The circumference of a circle = 2*pi*radius or diameter*pi

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

Circumference of a circle is 2πr (two x Pi x the radius of the circle)Pi is usually taken as 3.14 for simple calculations - see here http://en.wikipedia.org/wiki/Pi for a longer determination of Pi.The radius is half the diameter.Thus, a circle with a diameter of 6cm has a circumference of 18.84cm

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.

The circumference of a circle with a diameter of 6cm is about 18.85cm

Related questions

12 cm.

6/2 = a radius of 3 cm

6cm

The formula for the circumference of a circle is C = 2Ï€r, where C is circumference, Ï€ is pi (approx. 3.142), and r is the radius. So, for a circle with a radius of 6cm, C = 2(3.142)(6cm) = 18.852cm Rounding to the proper number of significant figures, this answer would be 20cm.

The radius of the circle is half the diameter of the circle. 30mm radius would mean 60mm diameter or 6cm.

12 cm

Since the diameter is always twice the length of the radius, the length of the radius is 6cm.

The circumference of a circle = 2*pi*radius or diameter*pi

C = ~37.7 cm A = ~113.1 cm2

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

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

It depends on the relationship between the rectangle and the circles.