The formula for diameter = Circumference/π. If a diameter of a circle is given then by substituting the given values in the following diameter formula we can easily find the circumference of a circle.
#Diameter of a circle how to
The formula for diameter = C/π units How To Find Circumference With Diameter Formula? If the circumference of a circle is given in 'C' units then it is easy to derive the diameter formula as given below: What Is the Diameter Formula When Circumference of a Circle Is Known? This is the radius of a circle that corresponds to the specified diameter. The radius of the circle is half the diameter of the circle. The diameter of a circle is the length of a straight line drawn between two points on a circle where the line also passes through the centre of a circle, or any two points on the circle, as long as they are exactly 180 degrees apart. If the radius of a circle is given in 'r' units then it is easy to determine the diameter formula as given below: What Is the Diameter Formula When Radius of a Circle Is Known? If the area of a circle is given in square units then it is easy to derive the diameter formula as given below: This means the radius is half of the value of the diameter.įAQs on Diameter Formula What Is the Diameter Formula When Area of a Circle Is Known? We know that diameter is twice the value of the radius. We will use the diameter formula of the circle when the circumference is given.ĭiameter formula = Circumference/π = 8 unitsĪnswer: The diameter of the given circle is 8 units.Įxample 3: Using the diameter formula, can you determine the value of the radius if the diameter of a circle is 12 units? We will use the first formula to find the diameter of the circle.Īnswer: Diameter of the given circle = 48 inches.Įxample 2: Find the diameter of a circle whose circumference is 8π units. Let us solve some interesting problems using the diameter formula.Įxample1: Using the diameter formula find the diameter of a circle whose radius is 24 inches long.
#Diameter of a circle trial
With Cuemath, find solutions in simple and easy steps.īook a Free Trial Class Examples on Diameter Formula Use our free online calculator to solve challenging questions. Diameter Formula Using Radius of a Circleįormula 1: The diameter is twice the length of the radius.ĭiameter Formula = 2 × Radius Diameter Formula Using Circumference of a Circleįormula 2: The diameter is the ratio of circumference to π.ĭiameter Formula = Circumference ÷ π Diameter Formula Using Area of Circleįormula 3: We can derive the diameter formula using the area formula which is We can find the diameter of a circle when the radius, area, or circumference is known.
Let us consider the different cases of the Diameter Formula. Since there are infinite points on its circumference, this means that a circle has an infinite number of diameters and each diameter of the circle has an equal length. The straight line connecting a point from one end of the circle to a point on the other end of the circle and passing through the center is called a diameter. Diameter is one of the important parts of a circle. Let's look at the ratio of the circumference to diameter of each circle: Circle 1. Here are two circles with their circumference and diameter labeled: Created with Raphal. Before we begin with the diameter formula, let us recall what is a diameter. The circumference is the distance around a circle (its perimeter): Created with Raphal.
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