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Circumference of a Circle Equation The distance around a closed curve is called as the circumference of the circle. It is also defined as the length around the circle. The circumference of a circle is measured in linear units like inches or centimeters. Circumference of a Circle Formula The formula of circumference of a circle is given by the following formula, Circumference, C = 2 * π * r where, r is the radius of the circle. and pi is a constant value and is equal to 3.14 The circumference of a circle can be calculated by its diameter using the following formula: Circumference, C = π * D Where, value of π is a constant and its value is approximately 3.14159265358979323846.... or 22/7 to be more precise and D is the diameter of the circle. To simplify calculations the value of π is rounded to 3.14. The diameter of a circle is twice its radius. Therefore, Circumference, C = 2 π r Know More About Geometry Distance Formula


Circumference of a Circle Examples Below are the examples on circumference of a circle Example 1: Find the circumference of a circle given that its radius is 10. Solution: The circumference is always multiply by 2 the length of the radius, Formula Circumference of circle = 2 r Circumference = 2 x 10 x = 62.8 Example 2: Find the circumference of a circle known that area of the circle is 153.86 Solution: Step 1: Learn More What is Distance Formula


What is Distance Formula Learn about distance formula here and understand the concept better with solved examples provided. Students can also use the online distance formula calculator and distance formula worksheet provided in the page. Let's understand what is the distance formula? The length of a line segment AB, which joins A (x1, y1) and B (x2, y2) is given by, Distance Formula Proof Let A (x1, y1) and B (x2, y2) be two points in the plane. Let d = distance between the points A and B. Draw AL and BM perpendicular to x-axis (parallel to y-axis). Draw AC perpendicular to BM to cut BM at C. In the figure,


OL = x1, OM = x2 [AC = LM = OM - OL = x2 - x1] MB = y2, MC = LA = y1 [CB = MB - MC = y2 - y1] From the right-angled DACB, Distance Formula Examples Below are some examples based on distance formula Example 1: Find the distance between the following pair of points: A (1,2) and B (4,5). Solution: Using the distance formula, we have Example 2: Find the distance between places when the two coordinates (2, 4) and (4, 6)are given, using the distance formula.? Solution: (x1, y1)= (2, 4) (x2, y2) = (4, 6) Read More About Pyramid Definition


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Circumference of a Circle Equation