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.
The Measure of an Arc. Definition. The measure of a minor arc is the measure of the central angle. that intercepts the arc. In circle O (Fig. 5-4), the measure of arc AB, symbolized by mAB, is. the measure of the central angle AOB, or m LAOB. If m L AOB = 45, then. mAB =. Definition.