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.
Not Helpful 84 Helpful Divide the circumference perimeter by pi. That gives you the diameter. The diameter is the same as the length or width of any circle. No further calculation is required. The radius is the length from the center of a circle to the edge. Pi is approximately rounded to 3. Louis Gutierrez began writing in for various websites, specializing in real estate, construction and electronics. The radius is measured from the center of a circle to one endpoint of the circle, whereas, the distance of diameter is measured from one end of the circle to a point on the other end of the circle, passing through the center.
The diameter is denoted by the letter D. There are infinite points on the circumference of a circle, this means that a circle has an infinite number of diameters, and each diameter of the circle is of equal length. Observe the following figure which shows the diameter of a circle by a blue line. The yellow line from the center to one endpoint of the circle is the radius and the outer boundary which is marked by a black dotted curve is the circumference of the circle.
This symbol is commonly used in technical specifications and drawings. We all know that diameter is a part of a circle. Let us understand a few terms before we learn the formula for the diameter of a circle. We can easily derive the diameter formula from the circumference. Radius is the length of the line segment from the center of the circle to an endpoint on the circle and diameter is twice the length of the radius of the circle.
Let us try using the formulas mentioned above in a practical illustration to find the diameter. Observe the example given below. Example: Jack drew a circle of radius 3 units.
What is the diameter of the circle? Therefore, the diameter of the circle is 6 units. How to Calculate Volume. How to Find Radius From Diameter. How to Find the Radius of a Circle. Number of Protons in an Uncharged Atom.
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