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How to Calculate the Volume and Circumference of a How to Determine the Diameter of a Circle. How to Calculate Circumference in Feet. How to Solve for the Circumference of a Circle. How to Calculate the Radius From the Circumference. How to Calculate the Radius of a Pipe.

How to Calculate Chord Length. The radius of a circle is a line segment that starts from the center of a circle and ends at the circumference of the circle. It is half the length of the diameter of a circle, i.

The diameter of a circle is a line segment that passes through the center of a circle and has two endpoints at the circumference. It is twice the length of the radius of a circle, i.

The diameter of a circle can be calculated according to the given parameters. If the parameters like radius, circumference, or area are given then we can directly use the following formulas.

If you observe the wheel of a cycle, the spikes run from one end to another end through the center. We can relate this to the diameter of a circle, as the diameter is the line segment that starts from one end of a circle and ends at the other end of the circle passing through the center.

If the diameter is given we can find the radius by dividing the value of diameter by 2. The diameter to circumference calculator is an online tool used to determine the value of the circumference of a circle.

In the diameter to circumference calculator enter the dimension of the diameter and get the value of circumference within a few seconds. You can also try the diameter calculator for direct calculations. If the radius of a circle is given in 'r' units then it is easy to determine the diameter of the circle formula. The diameter of a circle is a line segment from one end of the circle to the other end of the circle passing through the center of the circle.

Whereas, the radius of a circle is the length of the line segment from the center of a circle to a point on the circumference of the circle. Hence, the radius is half of the diameter of a circle. The radius of a circle is half the diameter. No, the diameter is not half of the radius; it is twice the radius of a circle.

Learn Practice Download. Diameter of a Circle In a circle, diameter is a line that passes through the center and meets the circumference at each end. What Is the Diameter of a Circle? Download Article Explore this Article methods. Calculation Help. Tips and Warnings. Things You'll Need. Related Articles. Article Summary. Author Info Last Updated: May 8, Method 1. If you know the radius of the circle, double it to get the diameter. The radius is the distance from the center of the circle to its edge.

Method 2. Draw a horizontal line inside the circle from one edge to the other. Use a ruler or a straight edge to do this. It can be at the top, near the bottom, or anywhere in between. Label the points where the line crosses the circle points "A" and "B. Draw two overlapping circles, one using A as the center and the other using B as the center. Be sure the two circles overlap like a Venn diagram. Draw a vertical line through the two points at which the outer circles intersect.

This line marks the diameter of the circle4. Measure the diameter. Measure it using a ruler,. Not Helpful 44 Helpful Not Helpful 85 Helpful Chris Byankno1. Since the radius is half the diameter, to get the diameter, you'd multiply the 6 cm by 2. The diameter of this circular dinner plate is 12 cm. Not Helpful Helpful You have a couple options. Find something that is 4 cm in diameter or slightly smaller and draw around it.

Use a compass set to a radius of 2 cm. Use a drawing program and set the circle properties so that it has a diameter of 4 cm.