The distance covered by it is the distance around the outer edge of a circle. That is,  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar.

The position of the pin on the board is the centre (O) of the circle. The length of then string is the  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar of the circle.

While tracing a circle, the two positions of the string which falls on a straight line is the  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar of the circle. It is twice the  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar

The  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar is twice the radius.

π approximate value is  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar

The  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar of circle is equal to 2πr.

A  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar has the shortest perimeter of all closed figures with the same area.

All circles are  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar to one another.

The distance covered in one  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar = the circumference of the circle

The formula used to find the  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar of a circle is equal to πr^2

The ratio of the area of a circle to the area of its semicircle is  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar

The  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar is the difference between the  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar of outer circle and inner circle.

The area of the  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar = Area of the outer rectangle – Area of the inner rectangle

The area of the  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar = Area of outer circle −Area of inner circle

 2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar is a round plane figure whose boundary (the circumference) consists of points equidistant from the fixed point ( the centre)

Distance around the circular region is called the  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar of the circle

The best example of a  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar is the wheel.

The distance covered by the wheel when it  2:13.14Areaarea of pathwaycirclecircular pathcircumferencecircumference or perimeterdiameterradiusrectangular pathwayrotates oncerotationsimilar is circumference.