If JavaScript is not working on your browser or in case you are simply curious here is the procedure for calculating the diameter of a circle from its area. A line that cuts the circle at two points is called a Secant. Write down the formula for calculating the circumference of a circle.
The diameter of a circle is known as the straight line segment which passes through the center of the circle.
If you know the circumference of a circle you can divide it by pi 314 to get the diameter circumference pi diameter. Diameter is the measurement of a straight line across the center of an object in this case a wheel. The formula used to calculate the circle diameter is. Conveniently it is twice as long as the radius of a circle.