# How to calculate a diameter

Circumference Calculator

Apr 04,  · Dimensions of a Circle. The diameter – defined above. The radius – the distance from the circle's center or origin to the edge, one half the diameter. The circumference – the length of the outside boundaries of the circle. The area of a circle is given by the equation, where is the area and is the radius. Use the given area in this equation and solve for to find the circle's radius. To find the circle's diameter, multiply its radius by.

To create this article, 66 people, some anonymous, worked to edit and improve it over time. This article has been viewed 3, times. Learn more Calculating a circle's diameter is easy if you know any of the other dimensions of the circle: the radius, the circumference, or the area.

It's also possible if you don't know any of the above dimensions but you do have a drawing of the circle. If you want to know how to calculate the diameter of a circle, just follow caoculate steps. Example If the radius of the circle is 4 cm, then the diameter of the circle is calcuoate cm x 2, or diameteer cm. This equals jow 2.

To calculate the diameter of a circle, multiply the radius by 2. Then, you can just multiply the radius by 2 what is the meaning of shame on you find the circle's diameter. Read the article to learn how to calculate the diameter of a circle using a ruler! Did this summary help you? Yes No.

Learn why people trust wikiHow. Download Article Explore this Article methods. Calculation Help. Tips what would you like for breakfast johnny Warnings. Things You'll Need. Related Articles. Calculwte Summary. Author Info Last Updated: March 16, Method 1 of 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 of 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 34 Helpful Not Helpful 70 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. Not Helpful 82 Helpful Divide the circumference perimeter by pi. That gives you the diameter.

Half of that is the radius. To get the area, square the radius, and then multiply by pi. Not Helpful 39 Helpful The diameter is equal to the cube root of the following: 6 times the volume divided by pi.

By using this service, some information may be shared with YouTube. Using geometrical formulas and equations gets easier with practice. Ask for help from someone who has worked with circles or any other geometrical figures. You're likely to find that questions of geometry will seem less challenging with a little experience.

Helpful 19 Not Helpful Familiarize yourself with the use of a compass the drawing tool, not the direction-finder. This is a very useful instrument in many applications, including drawing a circle's diameter, diameteer outlined above. A divider an instrument similar to a compass can sometimes be used in such cases.

Helpful 0 Not Helpful 0. Submit a Tip All tip submissions are carefully reviewed before being published. Related wikiHows How to. How to. Co-authors: Updated: March 16, Categories: Geometry. Article Summary X To calcilate the diameter of a circle, multiply the radius by 2.

Deutsch: Den Durchmesser eines Kreises berechnen. Italiano: Calcolare il Diametro di un Cerchio. Nederlands: De diameter van een cirkel berekenen. Bahasa Indonesia: Menghitung Diameter Lingkaran. Thanks to all authors for creating a page that has been read 3, times. Did this article help you? Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy.

What is a Circle's Diameter?

Nov 12,  · The distance from one side of the circle to the other, going through the center of the circle, is the diameter. The constant pi, designated by the Greek letter ?, is the ratio of the circumference to the diameter of a circle. For any circle, if you divide the circumference by the diameter you get pi, an irregular number usually rounded to A diameter of a circle is defined as a straight line passing from one side to another side through the center point. An online calculator to calculate the circle diameter based on the area. Just enter the area value in the input field and click calculate in this Diameter of a circle from area calculator . It is calculated just by multiplying the diameter of the circle with ? value. The diameter of a circle is known as the straight line segment which passes through the center of the circle. This is also known as the longest chord of the circle.

Bergeront Tiffney Here for the daily dose of fresh knowledge. To calculate the diameter of a circle is very easy. A circle is a round object. To calculate the diameter of the circle, follow the steps below. Draw an overlapping circle by each side of the label points, then draw a vertical line from each point outside.

The easiest step to know the diameter of the circle is if you know the radius of the circle, doubles it to get the diameter or if you know the circumferences of a circle, divide it by pie to get the diameter. Bernthal Its kind of my job to give answers.

Divide the area of the circle by 3. It is calculated by dividing the circumference by 3. Pratt Want to learn new things and share my knowledge. Before you can calculate the diameter of a circle, the knowledge of terms such as radius, circumference, and diameter itself will be of great help. The radius of a circle is the distance from the center of the circle to any part of the circumference.

When you know the radius of a circle, the diameter can be calculated by multiplying the radius by 2 i. For example, say the radius of a circle is 10cm, then the diameter of that circle will be 20cm. Also, the diameter of a circle can be calculated when you know the circumference of that circle. The circumference is defined as the length of the line that bounds a circle. Matz Lewis Clark Traveler and writer by profession. A circle is known to be a shape that will have all of the points that you can find in a plane.

The circle is often connected to things that are unconditional because it seems to have no start and no end. To calculate the diameter of a circle, there are certain things that you have to do. For example, if you already know the radius of the circle, you just need to double it to get the diameter. If you do not have any idea about the details that will help you compute the diameter of a circle with a given formula, you need to find the middle of a circle, place a dot and measure with the use of a ruler or any other measuring object that will get you the results you need.

Forgot your password? Speak now. Discuss Education Subject Math Circle. How to calculate the diameter of a circle? Asked by Jasmijn , Last updated: Apr 15, Post Your Answer. Bergeront Tiffney. Here for the daily dose of fresh knowledge. Bergeront Tiffney , Computer Engineer , M. Tech , Southeast Montgomery Answered Sep 30, Measure through the circle from edge to edge and label each point.

Then, measure the diameter with a ruler for accurate results use a digital caliper. Continue Reading. Its kind of my job to give answers. Bernthal , Teacher , MA, P. Want to learn new things and share my knowledge. Matz Lewis Clark. Traveler and writer by profession. Galatia Answered Aug 12, A circle is a shape, and there are many ways to measure the points of a circle.

One way to measure it is to measure the diameter. Measuring the diameter is fairly easy, and there are many ways to measure it. If you know either the circumference, area, or radius of the circle, you may use those measurements to identify the diameter. If the radius is known, that number may be doubled to identify the diameter. If the circumference is known, that number can be divided by pi to obtain the diameter.

Lastly, if the area is known, that number will need to be divided by pi, then find the square root of the result. From there, multiply the last number by 2 to obtain the diameter. Write Your Answer. More Circle Questions What is the circumference round to the nearest tenth of a circle with radius What is the difference between Circle and Sphere?

What is the difference between Circle and Ellipse? Which process is involved in system development life circle? Ask Your Own Question. Can You Answer What should I round to when finding the circumference of a circle? How to find the diameter of a circle? Topics Related To Circle.

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