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.
A major arc (right figure) is an arc of a circle having measure greater than or equal to (radians). SEE ALSO: Arc, Minor Arc, Semicircle REFERENCES: Referenced on Wolfram|Alpha: Major Arc CITE THIS AS: Rhoad, R.; Milauskas, G.; and Whipple, R. Geometry for Enjoyment and Challenge, rev. ed.