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.
For example, in the diagram, two chords and intersect in theinterior of circle O and is drawn.Angle AED is an exterior angle of DEB.Therefore,mAED mBDE mDBENotice that is the arc intercepted by BEC and is the arc inter-cepted by AED, the angle vertical to BEC.