Miike012 said:isnt the equation for circumference 2(pi)r?
and circumference refers to the entire circle which is 360 deg.
Circumference is the distance around a circle. It is measured by taking the length of the curved line that forms the circle.
The formula for calculating circumference is C = 2πr, where C is the circumference, π is the mathematical constant pi (approximately 3.14), and r is the radius of the circle. This formula can also be written as C = πd, where d is the diameter of the circle.
Circumference is the distance around a circle, while diameter is the distance across the circle passing through its center. They are related by the formula C = πd, where C is the circumference and d is the diameter.
Arc length is measured in degrees or radians, depending on the unit of measure used for the circle's radius. To calculate arc length, use the formula L = rθ, where L is the arc length, r is the radius, and θ is the central angle in radians.
Arc length is a portion of the circumference of a circle. It is calculated by dividing the central angle by 360 degrees (or 2π radians) and multiplying by the circumference of the circle. In other words, the circumference is equal to the arc length when the central angle is 360 degrees or 2π radians.