AArea of a circle Take a rope, tie it at one corner of a door knob and then. find out how much area can be covered if you cart move around. Also mention the name of 2D figure obtained. Tie a stone on one end of the rope and then rotate it. . Find the area of obtained figure take the length of rope as a radius.​

AArea of a circle Take a rope tie it at one corner of a door knob and then find out how much area can be covered if you cart move around Also mention the name o class=