If there is any misalignment the observer will see an arc segment instead.
Determining the length of an irregular arc segment is also called rectification of a curve.
To get the area of the arc segment, we need to subtract the area of the triangle made up by the circle's center and the two end points of the arc from the area .
Expertly used skis are capable of carving clean circular arc segments whose approximate minimum radius is proportional to the cosine of the angle of tilt multiplied by the side-cut radius.
Circular arc segments must be constructed as transversals to provide the correct proportions.
Kingsbury's research at the University of New Hampshire led him to conceive an early Kingsbury bearing that consisted of several stationary arc segments facing a thrust collar on the rotating shaft.
The scientists using the model say each arc segment in the scalloped lines forms in 3.5 days, which happens to be the time it takes Europa to make one complete orbit around Jupiter.
The compass is used for drawing circles or arc segments of circles.
The curved path was quite evident to German radar operators, who came to call the system "Boomerang" after the arc segment left on their displays as the aircraft appeared and disappeared out of range.
This uses a wheel that contains notches on its side, spaced by unequal, increasing arc segments.