A wheel has 22 spokes evenly distributed around the rim of the wheel. What is the measure, in radians, of the central angle formed by adjacent pairs of spokes?
so a circle has a total amount of 2π radians, now, divided even in 22 pieces, like the picture below, then [tex]\bf \cfrac{2\pi }{22}\implies \cfrac{\pi }{11}[/tex]
