Compass and straightedge constructions are known for all known constructible polygons. Therefore, the constructible points are exactly the points whose Cartesian coordinates are constructible numbers. Thus, constructible lengths must be algebraic numbers. Thus the regular myriagon is not a constructible polygon. Thus the regular megagon is not a constructible polygon. Thus the regular hectogon is not a constructible polygon. Thus the regular chiliagon is not a constructible polygon. Local systems have a mild generalization to constructible sheaves. As such, the regular digon is a constructible polygon. Also, any constructible number is an algebraic number. One case where the finiteness result applies is that of a constructible sheaf. It is also constructible with compass, straightedge and angle trisector. It is commonly encountered when studying constructible or perverse sheaves. The studio has since released an online version of the "WizKids" pirates constructible strategy game. The buyer had indeed bought marsh land and sold constructible land.