The most common type of thread mic consists of a V-shaped anvil and a cone-shaped spindle tip. The ratchet of the micrometer is turned until the spindle makes contact with the thread flanks, which provides the desired reading. Some thread mics also come with a centerline groove in the V...
area of circle = π (radius) 2 definition a radius is a measure of distance from the center of any circular object to its outermost edge or boundary. a radius is not only a dimension of a circle but also for a sphere, semi-sphere, a cone with a circular base, a cylinder ...