WebThe formula for calculating the circumference is C = πd or C = 2πr, where d is the diameter and r is the radius. The circumference of the roller is 2πr = 15π inches. The linear velocity v of a point on the surface of the roller is 117 feet per second or 1,404 inches per second. Note: 1 foot = 12 inches, so 117 × 12 = 1,404 inches WebNow, the formula for the circumference is C = 2\pi r C =2πr, but since the diameter is equal to twice the perimeter, we have that d = 2r d = 2r, and hence, the circumference formula becomes: C = d \pi C = dπ …

What is the diameter of a circle with a 120 inch circumference?

WebDec 15, 2024 · Use the formula C = πd to find the circumference if you know the diameter. In this equation, "C" represents the circumference of the circle, and "d" represents its diameter. That is to say, you can find … WebA 9-inch pizza is an example of a diameter: when a person makes the first cut to slice a round pizza pie in half, this cut is the diameter of the pizza. So a 9-inch pizza has a 9-inch diameter. Question 1: A circle has a diameter of 10cm, what is its circumference? Answer 1: Though we know that C = πd. churchtown medical centre southport

3 Ways to Calculate the Circumference of a Circle - wikiHow

WebDiameter: the largest distance between any two points on a circle; by this definition, the diameter of the circle will always pass through the center of the circle. It is equal to twice … WebOct 10, 2008 · Diameter = 30/pi inches What is the circumference of a 30 inch diameter circle? The circumference of every circle is (pi) x (diameter).The circumference of this particular circle is... WebAug 2, 2024 · Just divide the circumference by π to find the diameter. For example, if your circle has a circumference of 23 inches, the diameter would be 23/π, or approximately … dexter\\u0027s laboratory oceanbird