Full Answer
What is the formula for finding the circumference of a circle?
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 the circumference of a circle just by multiplying the diameter by pi.
What is the area of a circle with a circumference of 12?
Result in other units of area: A circle of radius = 6 or diameter = 12 or circumference = 37.7 centimeters has an area of: 1.131 × 10 -8 square kilometers (km²)
How to find the circumference of a circle?
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. You can also use the formula for circumference of a circle using radius, which is C = 2πr.
Is the circumference for any circle times the diameter?
The ratio of circumference (C) to diameter (d) is the same for any circle. Knowing this, which is a correct way to find the circumference of a circle? Multiply twice the diameter by C/d.
User Guide
This tool will calculate the circumference of a circle from the diameter, and will convert different measurement units for diameter and circumference.
Diameter of Circle
Enter the diameter of a 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.
Circumference of Circle
This is the total length of the edge around the circle with the specified diameter, if it was straightened out.