Depending on the size and method, defrosting a refrigerator or freezer can take anywhere from 10 minutes to a day. The most common method is to unplug the refrigerator or freezer, prop the door open and allow the ice to melt on its own. However, this method may take up to a day to defrost the appliance completely.
Circle is the locus of points equidistant from a given point, the center of the circle. The common distance from the center of the circle to its points is called radius. Thus a circle is completely defined by its center (O) and radius (R): C(O, R) = O(R) = {x: dist(O, x) = R}.
Geometry Definitions: perimeter: the distance around a figure circumference: the distance around a circle area: the number of square units in a region â (pi): the ratio of the circumference of a circle to its diameter, approximately 3.14 diameter: straight line through the center of a circle or sphere radius: straight line between the center of a circle or sphere to any point on its surface (one half of diameter) Perimeter: