the radius of a cirle is what percent of the diameter
The value of pi is the relationship of a circunference to its diameter. For instance, if you have a circle whose circunference is 9.42477 cm, you shall have a diameter of 3 cm. Any measure of a circunference divided by its diameter shall generates the same numeric value, the pi number.
Multiply the diameter of a circle by 3.14.
Multiply the diameter by 'pi' .
Yes.
8
Approximately 37.68 inches. The formula is the value of Pi times the diameter of the cirle. Pi rounds to 3.14. Thus 12 X 3.14 = 37.68.
4 inches. The radius is half of the diameter
5.9723 inch
The radius of a circle is always PRECISELY one half its diameter.
The cicumference of any circle divided by its diameter is aways equal to pi.
16 pi = almost exactly 50¼