The circumference of a circle that is 9 cm wide is: 28.274 cm
C=2*pi*r C=2*pi*9 C=18pi C=18*3.141592=56.548656...
Diameter of a circle = circumference/pi
A circle with a circumference of 11.25 has a diameter of: 3.581
The circumference of a circle with a radius of four is: 25.13
The circumference of 5 foot circle is: 15.7
56.549 cm
56.549 cm
Doubling the radius doubles the circumference.
It is 28.3 cm, approx.
Circumference of the circle: 2*pi*9 = 18*pi cm
The equation for circumference is C = 2*pi*r, where r is the radius of the circle and pi is a constant = 3.14159... Assuming that you mean a 9cm radius, the circumference is therefore: C = 2*pi*r = 2*pi*9cm = 18cm*pi = ~56.549cm
9*pi or 28.27 cm (to 2 dp)
Construct a circle with a 4.5 radius. The circle's circumference is 360 degrees. So mark out 3 by 120 degrees on the circumference and join them to the centre of the circle which will divide the circle into three equal parts.
The circumference of a 16-foot circle is 50.24 feet.
C=2*pi*r C=2*pi*9 C=18pi C=18*3.141592=56.548656...
A track 7m wide consists of two concentric circles. The circumference of the inner circle is 440m. Find, 1) the radius of the outer circle 2) the circumference of the outer circle.
It tells us how wide the circle is through its centre to each side of its circumference.