Note that each base angle was 60°, from (n – 2) × 180/ n, and the radii divide the base angles in half to form 30° angles. Next, form a right triangle by drawing the apothem (an altitude) from the ...

Along with the development of precision machining technology, the quality of cylinder surfaces has become the primary factor in deciding whether the quality of parts meets the requirements of high ...

Abstract: The evaluation of circularity based on the minimum circumscribed circle method is an important method suitable for the circle with the maximum material condition of a convex like a shaft.