Based on what? - The radius is 1/2 the diameter. If it is the circumference you know, divide it by (2 x pi).
The radius of a circle is half of its diameter.
Radius of a circle = diameter/2
int radius = 2; int output; radius = radius * 2; output = radius * Math.PI; Console.WriteLine(output);
Double the Radius to Calculate the Diameter.
Radius of a circle = diameter/2
From what? You need other variables you can use in the standard circle formulae from which to calculate the radius.
Divide the diameter by 2.
pi radius squared
The radius is one -half of the diameter. It is the distance from the circle center to any point on the circumference.
you calculate the Area of the circle at the end of the Cylinder and then multiply it by the lenght to the second circle at the end of the cylinder Circle area= Radius*Radius* pi pi being 3.14159265
Not sure about crircumference, but radius = circumference/(2*pi)
the area of the circle is Pi X Radius squared