What is a Circumference?
Prior to discussing how to calculate circumference from diameter, let us define what it is. Circumference of a circle or perimeter of a circle is the length of the complete arc of a circle. That is, the circumference would be the length of the circle if it were opened up and straightened out to a line segment.
In addition, circumference is represented by the uppercase letter C and it is measured in terms of units of length like centimeters, meters, or kilometers.
What is a Diameter?
Diameter is a chord or a straight line segment that runs through the center point of any circle and touches two points on the circumference of a circle. It is the longest possible chord of any circle.
Additionally, a circle’s diameter essentially splits the shape in half.
Why is Calculating the Circumference from Diameter Useful?
- Architects use the circumference concept when looking at materials for their projects,
- Also its used a lot in farming for fencing and looking at crop yields.
- Because the circumference measures a distance around something, it’s an invaluable tool for lots of work that involves area, shape, and measurement.
Formula to Calculate the Circumference from Diameter.
Finding the circumference of a circle is quick and easy. If you know the length of the diameter of any given circle, then you can calculate its circumference.
π is a special mathematical constant with a value estimated to be 3.142 or
Calculate the circumference of a circle whose diameter is 14 m.
Therefore, the circumference of the circle is 43.988 m.
Find the circumference of the circle, if the diameter given is 35cm long.
Hence, the the circumference of the circle is 110cm.