How can tartar and plaque be removed from teeth without grinding? is there any paste, etc. for it?
The girders of a suspension bridge form an arc. The definition of an arc is a curve or bowed shape, like a part of a circle. An example of an arc is a rainbow. To arc is defined as to make a curved shape or move in a curved path.
Arc Length Definition. Arc length is a linear measure of the arc measured along the circle. It can be understood, that the arc length is a fraction of the circumference of the circle. To measure the arc length physically: Place a thin wire or thread carefully along the circle.