francisco pputs his favorite disc in his cd player. if it spins with a frequency of 1800 revolutions, per minute (30hz), what is the period of spin of the compact dusk?

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m