circumference of a circle = 2*pi*radius or diameter*pi
The cricle's circumference is a linear function of its radius, so they change in direct proportion.If the radius increases by 75%, the circumference also increases by 75%.
You can use the circumference of the pencil and the circumference formula to find the radius. Set the measured circumference equal to 2pi*radius and solve. I measured it to about .75 of an inch, so: .75=2pi*radius r=.75/2pi
11.93662073 inches
To find the radius when the circumference is 75 cm, you can use the formula for circumference: ( C = 2\pi r ). Rearranging the formula to solve for the radius ( r ) gives ( r = \frac{C}{2\pi} ). Substituting the circumference, you get ( r = \frac{75}{2\pi} ), which is approximately 11.94 cm.
Circumference = 2*pi*r Circumference = 2 *pi*12 mm 75 mm =====
75 rounded
Circumference of a circle = 2*pi*radius or diameter*pi
The circumference of a circle is C = 2πr, where C is circumference, π is pi (3.14), and r is radius. C = 2 x 3.14 x 12cm = 75cm = 75/1 cm
The circumference of a circle with a 10 millimeter diameter is about 31.42 mm
Circumference = 2*pi*radius Radius = Circumference/(2*pi)
Circumference = 32.2/75 x 360 ie 154.56 in. Radius is therefore half of that, divided by pi, ie 24.6 in
The radius is 1/2 of the circumference.