To calculate the circumference of a circle, multiply the diameter of the circle with π (pi). The circumference can also be calculated by multiplying 2×radius with pi (π=3.14).

**How is the formula for the circumference of a circle derived?**

To calculate the circumference of a circle, use the formula

**C = πd**, where “C” is the circumference, “d” is the diameter, and π is 3.14. If you have the radius instead of the diameter, multiply it by 2 to get the diameter.www.wikihow.com/Calculate-the-Circumference-of-a-Circle

**How do you find the circumference with only the diameter?**

Write down the formula for finding the circumference of a circle using the diameter. The formula is simply this:

**C = πd**. In this equation, “C” represents the circumference of the circle, and “d” represents its diameter. That is to say, you can find the circumference of a circle just by**multiplying the diameter by pi**.www.wikihow.com/Calculate-the-Circumference-of-a-Circle

How to determine the geometry of a circle?

**Math Made Easy—How to Find the Circumference of a Circle**

- Find the Circumference of a Circle Given the Radius
- Find the Circumference of a Circle Given the Diameter
- Find the Radius of a Circle Given the Circumference
- Find the Circumference of a Circle Given the Area

owlcation.com/stem/Math-Made-Easy-Geometry-Help-Cir…

**What is the definition of circumference?**

Definition of circumference. The circumference of a circle is the linear distance of a circle’s edge. It is the same as the perimeter of a geometric figure, but the term ‘perimeter’ is used exclusively for polygons. Circumference is often misspelled as circumfrence.

www.omnicalculator.com/math/circumference